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Ten species of the louse genusMyrsideabelonging to the “serini-species-group” have been reviewed. A redescription ofMyrsidea quadrifasciata(Piaget, 1880), the earliest described and valid species of this species complex, is given and a neotype for this species is designated. Nine new junior synonymies ofM. quadrifasciataare proposed and discussed. The new synonyms and their respective type hosts are:Myrsidea anoxanthiPrice and Dalgleish, 2007 fromLoxipasser anoxanthus(Gosse, 1847),Myrsidea argentina(Kellogg, 1906) fromSpinus magellanicus(Vieillot, 1805),Myrsidea balatiMacháček, 1977 fromPasser montanus(Linnaeus, 1758),Myrsidea darwiniPalma and Price, 2010 fromGeospiza fuliginosaGould, 1837,Myrsidea major(Piaget, 1880) fromPlectrophenax nivalis(Linnaeus, 1758),Myrsidea serini(Séguy, 1944) fromSerinus serinus(Linnaeus, 1766),Myrsidea queleaeTendeiro, 1964 fromQuelea quelea lathami(Smith, A., 1836),Myrsidea textorisKlockenhoff, 1984 fromPloceus cucullatus cucullatus(Müller, 1776), andMyrsidea viduaeTendeiro, 1993 fromVidua macroura(Pallas, 1764). Intraspecific morphometric variability, relative genetic divergence (based on a 379 bp portion of the mitochondrialCOIgene and a 347 bp portion of the nuclearEF-1αgene), geographical distribution, and host associations, including 8 new host records for these lice, are discussed. Taking into consideration these parameters we suggest that the only way to deal with these taxa is to follow concept of subspecies with the following taxa and their geographic distributon: Palearctic Region:M. q. quadrifasciataandM. q. serini, Neotropical Region:M. q. anoxanthi,M. q. argentina,M. q. darwini, Paleotropic Region:M. q. queleae,M. q. textorisandM. q. viduae.

Myrsidea danielalfonsoi Sychra & Palma, 2021 Myrsidea danielalfonsoi Sychra & Palma, 2021: 442, figs 1���6. Holotype ♀ in MONZ. Type host: Turdus falcklandii magellanicus King, 1831. Chilean host: Turdus falcklandii magellanicus King, 1831. Other hosts: None. Chilean locality: Concepci��n: Region VIII. Geographic distribution: Southern South America. Chilean reference: Sychra & Palma (2021). Other significant references: None. Remarks: Although Turdus falcklandii also occurs in Argentina and the Falkland Islands, Myrsidea danielalfonsoi is currently known only from Chile., Published as part of Gonza �� Lez-Acun, Daniel A. & Palma, Ricardo L., 2021, An annotated catalogue of bird lice (Insecta: Phthiraptera) from Chile, pp. 1-151 in Zootaxa 5077 (1) on page 37, DOI: 10.11646/zootaxa.5077.1.1, http://zenodo.org/record/5766642, {"references":["Sychra, O. & Palma, R. L. (2021) A new species of Myrsidea (Insecta: Phthiraptera: Menoponidae) from Chile. Zootaxa, 5016 (3), 441 - 447. https: // doi. org / 10.11646 / zootaxa. 5016.3.9"]}

Myrsidea psittaci Carriker, 1955 Myrsidea psittaci Carriker, 1955: 38, figs 3���4. Myrsidea psittaci Carriker, 1955; Clay 1968: 227, figs 10, 25���26, 33; pl. 2: fig. 3; pl. 4: fig. 6. Myrsidea psittaci Carriker, 1955; Price et al. 2003: 131. Myrsidea psittaci Carriker, 1955; Gonz��lez-Acu��a et al. 2006c: 212. Holotype ♂ in Dept. Higiene, Caracas, Venezuela (see Emerson 1967: 104). Type host: ��� Amazona ochrocephala ochrocephala (Gmelin, 1788) ���, in error (see Clay 1968: 227). Chilean host: Chrysomus thilius thilius (Molina, 1782). Other hosts: Agelaius icterocephalus (Linnaeus, 1766); Agelaius ruficapillus Vieillot, 1819; Amblyramphus holosericeus (Scopoli, 1786); Chrysomus thilius petersii (Laubmann, 1934); Gnorimopsar chopi (Vieillot, 1819); Pseudoleistes virescens (Vieillot, 1819); Pseudoleistes guirahuro (Vieillot, 1819); Scaphidura oryzivora (Gmelin, 1788). Chilean locality: Talca: Region VII. Geographic distribution: South America. Chilean reference: Gonz��lez-Acu��a et al. (2006c). Other significant references: Emerson (1967); Clay (1968); Cicchino & Castro (1998a: 101); Price et al. (2003). Remarks: Gonz��lez-Acu��a et al. (2006c) collected only one female of Myrsidea psittaci from 28 specimens of Chrysomus thilius searched for lice., Published as part of Gonza �� Lez-Acun, Daniel A. & Palma, Ricardo L., 2021, An annotated catalogue of bird lice (Insecta: Phthiraptera) from Chile, pp. 1-151 in Zootaxa 5077 (1) on page 37, DOI: 10.11646/zootaxa.5077.1.1, http://zenodo.org/record/5766642, {"references":["Carriker, M. A. Jr. (1955) A corrected list of the Venezuelan Mallophaga published by E. W. Stafford, l 943. Boletin de Entomologia Venezolana, 11 (1 - 2), 31 - 54.","Clay, T. (1968) Contributions towards a revision of Myrsidea (Menoponidae: Mallophaga) III. Bulletin of the British Museum (Natural History) Entomology, 21 (4), 203 - 243, 4 pls.","Price, R. D., Hellenthal, R. A. & Palma, R. L. (2003) World checklist of chewing lice with host associations and keys to families and genera. In: Price, R. D., Hellenthal, R. A., Palma, R. L., Johnson, K. P. & Clayton, D. H. (Eds.), The chewing lice: world checklist and biological overview. Illinois Natural History Survey Special Publication 24. Illinois Natural History Survey, Champaign, Illinois, pp. 1 - 448.","Gonzalez-Acuna, D., Vergara, F., Moreno, L., Barrientos, C., Ardiles, K. & Cicchino, A. (2006 c) Lice (Insecta: Phthiraptera) from species of the families Furnariidae, Tyrannidae, Turdidae and Icteridae (Aves: Passeriformes) from Chile. Gayana, 70 (2), 210 - 219. https: // doi. org / 10.4067 / S 0717 - 65382006000200008","Emerson, K. C. (Ed.) (1967) Carriker on Mallophaga. Posthumous papers, catalog of forms described as new, and bibliography. Melbourne A. Carriker, Jr. 1879 - 1965. Bulletin of the United States National Museum, 248, i - x + 1 - 150. https: // doi. org / 10.5479 / si. 03629236.248.1","Cicchino, A. & Castro, D. del C. (1998 a). Capitulo 8. Amblycera. In: Morrone, J. J. & Coscaron, S. (Eds.), Biodiversidad de Artropodos Argentinos. Ediciones Sur, La Plata, pp. 84 - 104."]}

Myrsidea danielalfonsoi Sychra & Palma, 2021 Myrsidea danielalfonsoi Sychra & Palma, 2021: 442, figs 1–6. Holotype ♀ in MONZ. Type host: Turdus falcklandii magellanicus King, 1831. Chilean host: Turdus falcklandii magellanicus King, 1831. Other hosts: None. Chilean locality: Concepción: Region VIII. Geographic distribution: Southern South America. Chilean reference: Sychra & Palma (2021). Other significant references: None. Remarks: Although Turdus falcklandii also occurs in Argentina and the Falkland Islands, Myrsidea danielalfonsoi is currently known only from Chile.

Myrsidea quadrifasciata quadrifasciata (Piaget, 1880) Menopon quadrifasciatum Piaget, 1880: 440, pl. 35: fig. 6. Myrsidea quadrifasciata Piaget, 1880 [sic]; Harrison 1916: 59. Myrsidea quadrifasciata (Piaget, 1880); Hopkins & Clay 1952: 232. Myrsidea quadrifasciata (Piaget, 1880); Price et al. 2003: 131. Myrsidea quadrifasciata (Piaget, 1880); Oyarz��n-Ruiz et al. 2021: 4, fig. 4. Myrsidea quadrifasciata quadrifasciata (Piaget, 1880); Sychra et al. 2021: 393. Syntypes lost (see Clay 1949a: 910). Type host: Passer domesticus domesticus (Linnaeus, 1758). Chilean host: Passer domesticus (Linnaeus, 1758). Other hosts: Passer montanus (Linnaeus, 1758); Plectrophenax nivalis (Linnaeus, 1758). Chilean localities: Chill��n: Region XVI; Las Mariposas (��uble): Region XVI. Geographic distribution: All continents, except Antarctica. Chilean reference: Oyarz��n-Ruiz et al. (2021). Other significant references: Brown & Wilson (1975: 158); Price et al. (2003); Sychra et al. (2021). Remarks: Myrsidea quadrifasciata quadrifasciata was introduced to Chile by human agency with house sparrows (Mart��nez-Pi��a & Gonz��lez-Cifuentes 2004: 219; Oyarz��n-Ruiz et al. 2021: 2). The male and female depicted in photos by Oyarz��n-Ruiz et al. (2021: fig. 4) do not belong to Myrsidea q. quadrifasciata because they clearly show well-developed pharyngeal sclerites, unlike those in Sychra et al. (2021: figs 19���20) (O. Sychra pers. comm. Aug. 2021)., Published as part of Gonza �� Lez-Acun, Daniel A. & Palma, Ricardo L., 2021, An annotated catalogue of bird lice (Insecta: Phthiraptera) from Chile, pp. 1-151 in Zootaxa 5077 (1) on page 37, DOI: 10.11646/zootaxa.5077.1.1, http://zenodo.org/record/5766642, {"references":["Piaget, E. (1880) Les Pediculines. Essai Monographique. Two volumes. E. J. Brill, Leiden, xxxix + 714 pp., 56 pls.","Harrison, L. (1916) The genera and species of Mallophaga. Parasitology, 9 (1), 1 - 156. https: // doi. org / 10.5962 / bhl. title. 102856","Hopkins, G. H. E. & Clay, T. (1952) A check list of the genera & species of Mallophaga. Trustees of the British Museum, London, 362 pp. https: // doi. org / 10.5962 / bhl. title. 118844","Price, R. D., Hellenthal, R. A. & Palma, R. L. (2003) World checklist of chewing lice with host associations and keys to families and genera. In: Price, R. D., Hellenthal, R. A., Palma, R. L., Johnson, K. P. & Clayton, D. H. (Eds.), The chewing lice: world checklist and biological overview. Illinois Natural History Survey Special Publication 24. Illinois Natural History Survey, Champaign, Illinois, pp. 1 - 448.","Oyarzun-Ruiz, P., Cardenas, G., Silva-de-la-Fuente, M. C., Martin, N., Mironov, S., Cicchino, A., Kinsella, J. M., Moreno, L. & Gonzalez-Acuna, D. (2021) Parasitic fauna of the invasive house sparrow (Passer domesticus) from Nuble region, Chile: an example of co-introduced parasites. Revista Brasileira de Parasitologia Veterinaria [Brazilian Journal of Veterinary Parasitology], 30 (3), e 004221, 1 - 17, https: // doi. org / 10.1590 / s 1984 - 29612021068","Clay, T. (1949 a) Systematic notes on the Piaget collections of Mallophaga. - Pt I. Annals and Magazine of Natural History, Series 12, 2, 811 - 838 + 895 - 921. https: // doi. org / 10.1080 / 00222934908654034","Linnaeus, C. (1758) Systema Naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Tenth Edition. Vol. 1. Laurentii Salvii, Holmiae, iv + 824 pp. https: // doi. org / 10.5962 / bhl. title. 542","Brown, N. S. & Wilson, G. I. (1975) A comparison of the ectoparasites of the house sparrow (Passer domesticus) from North America and Europe. The American Midland Naturalist, 94 (1), 154 - 165. https: // doi. org / 10.2307 / 2424546","Martinez-Pina, D. E. & Gonzalez-Cifuentes, G. E. (2004) Aves de Chile. Nueva guia de campo. Ediciones del Naturalista, Santiago, 620 pp."]}

Myrsidea isostoma (Nitzsch, 1866) Host: Corvus frugilegus Linnaeus, 1758. Ref.: this paper. Location: Kravany, 9 Jun. 1998 (Kri��tof��k Coll., VETUNI). Note: This is the first record of Myrsidea isostoma from Slovakia., Published as part of O��lej��kov��, Lucie, Kri��tof��k, J��n, Trnka, Alfr��d & Sychra, Old��ich, 2021, An annotated checklist of chewing lice (Phthiraptera: Amblycera, Ischnocera) from Slovakia, pp. 1-80 in Zootaxa 5069 (1) on page 34, DOI: 10.11646/zootaxa.5069.1.1, http://zenodo.org/record/5712523, {"references":["Nitzsch, C. L. (1866) Die Federlinge der Sing-, Schrei-, Kletter- und Taubenvogel. Zeitschrift fur die gesammten Naturwissenschaften, Halle, 27 (2), 115 - 122. [in German]","Linnaeus, C. von (1758) Systema Naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Tenth Edition. Volume 1. Laurentii Salvii, Holmiae, iv + 824 pp. [in Latin]"]}

Myrsidea thoracica (Giebel, 1874) Host: Turdus torquatus Linnaeus, 1758. Ref.: Hudec (1983) as Myrsidea sp.; this paper. Location: N��zke Tatry���Čertovica, 29 Jun. 1960 (Bal��t Coll., MMBC slide number 1211). Notes: Hudec (1983) recorded Myrsidea sp. from this host, but without giving a location. This record was probably made on the basis of slide 1211 from the Bal��t Coll., because there is no other Myrsidea from this host in the collection This is a first record of Myrsidea thoracica from Slovakia, and it is also a new host-louse association for Myrsidea thoracica worldwide (Price et al. 2003: 132)., Published as part of O��lej��kov��, Lucie, Kri��tof��k, J��n, Trnka, Alfr��d & Sychra, Old��ich, 2021, An annotated checklist of chewing lice (Phthiraptera: Amblycera, Ischnocera) from Slovakia, pp. 1-80 in Zootaxa 5069 (1) on pages 34-35, DOI: 10.11646/zootaxa.5069.1.1, http://zenodo.org/record/5712523, {"references":["Giebel, C. G. A. (1874) Insecta epizoa. Die auf Saugetieren und Vogeln schmarotzenden Insecten nach Chr. L. Nitzsch's Nach- lass bearbeitet. Otto Wigand, Leipzig, xvi + 308 pp. [in German]","Linnaeus, C. von (1758) Systema Naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Tenth Edition. Volume 1. Laurentii Salvii, Holmiae, iv + 824 pp. [in Latin]","Hudec, K. (Ed.), (1983) Ptaci 3 - I & II, Fauna CSSR, svazky 23, 24. [Birds 3 - I & II. Fauna CSSR. Vols. 23 & 24]. Academia, Praha, 1236 pp. [in Czech]","Price, R. D., Hellenthal, R. A., Palma, R. L., Johnson, K. P. & Clayton, D. H. (2003) The chewing lice: world checklist and biologi- cal overview. Illinois Natural History Survey Special Publication 24. Illinois Natural History Survey, Champaign, Illinois, x + 501 pp."]}

Myrsidea picae (Linnaeus, 1758) Host: Pica pica (Linnaeus, 1758). Ref.: Bal��t (1956, 1977); Straka (1987). Locations: Veľk�� Topoľn��ky, 14 Feb. 1951; ��aca, 1 Nov. 1953 (Bal��t 1956); Blatnica, 31 Jan. 1977 (Straka Coll., AKMM)., Published as part of O��lej��kov��, Lucie, Kri��tof��k, J��n, Trnka, Alfr��d & Sychra, Old��ich, 2021, An annotated checklist of chewing lice (Phthiraptera: Amblycera, Ischnocera) from Slovakia, pp. 1-80 in Zootaxa 5069 (1) on page 34, DOI: 10.11646/zootaxa.5069.1.1, http://zenodo.org/record/5712523, {"references":["Linnaeus, C. von (1758) Systema Naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Tenth Edition. Volume 1. Laurentii Salvii, Holmiae, iv + 824 pp. [in Latin]","Balat, F. (1956) Prehled vsenek (Mallophaga), zjistenych na ptacich a savcich Slovenska. [Overview of chewing lice (Mallo- phaga) from birds and mammals from Slovakia]. Sbornik krajskeho muzea v Trnave, 2, 56 - 77. [in Czech]","Balat, F. (1977) Enumeratio insectorum Bohemoslovakiae: Mallophaga. Acta Faunistica Entomologica Musei Nationalis Prague, 15 (Supplementum 4), 45 - 52. [in German]","Straka, V. (1987) Prehlad svol (Mallophaga) v zbierkach Turcianskeho muzea Andreja Kmeta v Martine. [A survey of Mallo- phaga in the collections of Andrej Kmet Turcianske Museum in Martin]. Kmetianum, Martin, 8, 321 - 331. [in Slovak]"]}

Myrsidea rustica (Giebel, 1874) Host: Hirundo rustica Linnaeus, 1758. Ref.: this paper. Location: Gbelce, 17 Apr.���2 May 2008, 19���30 Apr. 2009 (VETUNI). Note: This is the first record of Myrsidea rustica from Slovakia., Published as part of O��lej��kov��, Lucie, Kri��tof��k, J��n, Trnka, Alfr��d & Sychra, Old��ich, 2021, An annotated checklist of chewing lice (Phthiraptera: Amblycera, Ischnocera) from Slovakia, pp. 1-80 in Zootaxa 5069 (1) on page 34, DOI: 10.11646/zootaxa.5069.1.1, http://zenodo.org/record/5712523, {"references":["Giebel, C. G. A. (1874) Insecta epizoa. Die auf Saugetieren und Vogeln schmarotzenden Insecten nach Chr. L. Nitzsch's Nach- lass bearbeitet. Otto Wigand, Leipzig, xvi + 308 pp. [in German]","Linnaeus, C. von (1758) Systema Naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Tenth Edition. Volume 1. Laurentii Salvii, Holmiae, iv + 824 pp. [in Latin]"]}

Myrsidea franciscoloi Conci, 1942 Host: Cinclus cinclus (Linnaeus, 1758). Ref.: Bal��t (1953, 1956, 1977). Locations: Žarnovica, 7 Jan. 1952; Sklen�� Teplice, 11 Oct. 1953 (Bal��t 1956)., Published as part of O��lej��kov��, Lucie, Kri��tof��k, J��n, Trnka, Alfr��d & Sychra, Old��ich, 2021, An annotated checklist of chewing lice (Phthiraptera: Amblycera, Ischnocera) from Slovakia, pp. 1-80 in Zootaxa 5069 (1) on page 34, DOI: 10.11646/zootaxa.5069.1.1, http://zenodo.org/record/5712523, {"references":["Conci, C. (1942) Il genere Myrsidea II. Una nuova specie di Myrsidea del Cinclus c. meridionalis Brehm. Annali del Museo Civico di Storia Naturale de Genova, 61, 287 - 289. [in Italian]","Linnaeus, C. von (1758) Systema Naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Tenth Edition. Volume 1. Laurentii Salvii, Holmiae, iv + 824 pp. [in Latin]","Balat, F. (1953) Mallophaga zjistena na ptacich Moravy a Slovenska. [Mallophaga found on birds from Moravia and Slovakia]. Spisy vydavane Pr ˇ irodove ˇ deckou fakultou Masarykovy university, M 6, 348, 169 - 176. [in Czech]","Balat, F. (1956) Prehled vsenek (Mallophaga), zjistenych na ptacich a savcich Slovenska. [Overview of chewing lice (Mallo- phaga) from birds and mammals from Slovakia]. Sbornik krajskeho muzea v Trnave, 2, 56 - 77. [in Czech]","Balat, F. (1977) Enumeratio insectorum Bohemoslovakiae: Mallophaga. Acta Faunistica Entomologica Musei Nationalis Prague, 15 (Supplementum 4), 45 - 52. [in German]"]}

Myrsidea cornicis (De Geer, 1778) Host: Corvus cornix Linnaeus, 1758. Ref.: Bal��t (1953, 1956, 1977); Straka (1987). Locations: Bratislava���Petržalka, 19 Feb. 1950; Žih��rec/Zsig��rd, 17 Sep. 1953 (Bal��t Coll., MMBC slide number 526, B287); Zlat�� Moravce, 12 Oct. 1953; Tatransk�� Lomnica, 8 Jun. 1955 (Bal��t 1956); Martin, 27 Jan. 1977 (Straka Coll., AKMM)., Published as part of O��lej��kov��, Lucie, Kri��tof��k, J��n, Trnka, Alfr��d & Sychra, Old��ich, 2021, An annotated checklist of chewing lice (Phthiraptera: Amblycera, Ischnocera) from Slovakia, pp. 1-80 in Zootaxa 5069 (1) on page 34, DOI: 10.11646/zootaxa.5069.1.1, http://zenodo.org/record/5712523, {"references":["De Geer, C. (1778) Des ricins. In: De Geer, C., Memoires pour servir a l'histoire des insectes. Vol. 7. Pierre Hesselberg, Stock- holm, pp. 69 - 82. [in French]","Linnaeus, C. von (1758) Systema Naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Tenth Edition. Volume 1. Laurentii Salvii, Holmiae, iv + 824 pp. [in Latin]","Balat, F. (1953) Mallophaga zjistena na ptacich Moravy a Slovenska. [Mallophaga found on birds from Moravia and Slovakia]. Spisy vydavane Pr ˇ irodove ˇ deckou fakultou Masarykovy university, M 6, 348, 169 - 176. [in Czech]","Balat, F. (1956) Prehled vsenek (Mallophaga), zjistenych na ptacich a savcich Slovenska. [Overview of chewing lice (Mallo- phaga) from birds and mammals from Slovakia]. Sbornik krajskeho muzea v Trnave, 2, 56 - 77. [in Czech]","Balat, F. (1977) Enumeratio insectorum Bohemoslovakiae: Mallophaga. Acta Faunistica Entomologica Musei Nationalis Prague, 15 (Supplementum 4), 45 - 52. [in German]","Straka, V. (1987) Prehlad svol (Mallophaga) v zbierkach Turcianskeho muzea Andreja Kmeta v Martine. [A survey of Mallo- phaga in the collections of Andrej Kmet Turcianske Museum in Martin]. Kmetianum, Martin, 8, 321 - 331. [in Slovak]"]}

Myrsidea latifrons (Carriker [in Carriker & Shull], 1910) Host: Riparia riparia (Linnaeus, 1758). Ref.: this paper. Location: Gbelce, 28 Apr. 2008, 27 Apr. 2009 (VETUNI). Note: This is the first record of Myrsidea latifrons from Slovakia., Published as part of O��lej��kov��, Lucie, Kri��tof��k, J��n, Trnka, Alfr��d & Sychra, Old��ich, 2021, An annotated checklist of chewing lice (Phthiraptera: Amblycera, Ischnocera) from Slovakia, pp. 1-80 in Zootaxa 5069 (1) on page 34, DOI: 10.11646/zootaxa.5069.1.1, http://zenodo.org/record/5712523, {"references":["Linnaeus, C. von (1758) Systema Naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Tenth Edition. Volume 1. Laurentii Salvii, Holmiae, iv + 824 pp. [in Latin]"]}

Myrsidea quadrifasciata quadrifasciata (Piaget, 1880) Host: Passer montanus (Linnaeus, 1758). Ref.: Sychra et al. (2021). Locations: Gab�kovo, 22 Jul. 1953 (Bal��t Coll., MMBC slide number 1380); Gbelce, (4751���N 1830���E), 10 Jul. 2019 (VETUNI). Note: Sychra et al. (2021) have recognised several subspecies of Myrsidea quadrifasciata, with the population from Passer montanus belonging to the nominate subspecies., Published as part of O��lej��kov��, Lucie, Kri��tof��k, J��n, Trnka, Alfr��d & Sychra, Old��ich, 2021, An annotated checklist of chewing lice (Phthiraptera: Amblycera, Ischnocera) from Slovakia, pp. 1-80 in Zootaxa 5069 (1) on page 34, DOI: 10.11646/zootaxa.5069.1.1, http://zenodo.org/record/5712523, {"references":["Piaget, E. (1880) Les Pediculines. Essai Monographique. Vols. 1 - 2. E. J. Brill, Leide, xxxix + 714 56 pp. [in French]","Linnaeus, C. von (1758) Systema Naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Tenth Edition. Volume 1. Laurentii Salvii, Holmiae, iv + 824 pp. [in Latin]","Sychra, O., Kolencik, S., Papousek, I., Bilbija, B. & Literak, I. (2021) Myrsidea quadrifasciata (Phthiraptera: Amblycera) - a unique host generalist among highly host-specific chewing lice. Arthropod Systematics & Phylogeny, 79, 379 - 400. https: // doi. org / 10.3897 / asp. 79. e 6397"]}

Myrsidea cucullaris (Nitzsch, 1818) Host: Sturnus vulgaris Linnaeus, 1758. Ref.: Bal��t (1956, 1977); this paper. Locations: Bansk�� ��tiavnica���Po�vadla, 23 Apr. 1953 (Bal��t Coll., MMBC slide number 1125); Gbelce, 2 Oct. 2019 (VETUNI)., Published as part of O��lej��kov��, Lucie, Kri��tof��k, J��n, Trnka, Alfr��d & Sychra, Old��ich, 2021, An annotated checklist of chewing lice (Phthiraptera: Amblycera, Ischnocera) from Slovakia, pp. 1-80 in Zootaxa 5069 (1) on page 34, DOI: 10.11646/zootaxa.5069.1.1, http://zenodo.org/record/5712523, {"references":["Nitzsch, C. L. (1818) Die Familien und Gattungen der Theierinsekten (Insecta epizoica); als ein Prodromus einer Naturges- chichte derselben. E. F. Germar's Magazin der Entomologie, 3, 261 - 318. [in German]","Linnaeus, C. von (1758) Systema Naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Tenth Edition. Volume 1. Laurentii Salvii, Holmiae, iv + 824 pp. [in Latin]","Balat, F. (1956) Prehled vsenek (Mallophaga), zjistenych na ptacich a savcich Slovenska. [Overview of chewing lice (Mallo- phaga) from birds and mammals from Slovakia]. Sbornik krajskeho muzea v Trnave, 2, 56 - 77. [in Czech]","Balat, F. (1977) Enumeratio insectorum Bohemoslovakiae: Mallophaga. Acta Faunistica Entomologica Musei Nationalis Prague, 15 (Supplementum 4), 45 - 52. [in German]"]}

Myrsidea danielalfonsoi new species (Figs 1–6) Type host: Turdus falcklandii magellanicus King, 1831 – Austral thrush (Zorzal patagónico). Type locality: Concepción, Chile.

Myrsidea danielalfonsoi new species (Figs 1���6) Type host: Turdus falcklandii magellanicus King, 1831 ��� Austral thrush (Zorzal patag��nico). Type locality: Concepci��n, Chile., Published as part of Sychra, Oldrich & Palma, Ricardo L., 2021, A new species of Myrsidea (Insecta: Phthiraptera: Menoponidae) from Chile, pp. 441-447 in Zootaxa 5016 (3) on page 442, DOI: 10.11646/zootaxa.5016.3.9, http://zenodo.org/record/5222398

Myrsidea Waterston, 1915 Myrsidea Waterston, 1915: 13. Type species: Myrsidea victrix Waterston, 1915 (by original designation)., Published as part of Sychra, Oldrich & Palma, Ricardo L., 2021, A new species of Myrsidea (Insecta: Phthiraptera: Menoponidae) from Chile, pp. 441-447 in Zootaxa 5016 (3) on page 442, DOI: 10.11646/zootaxa.5016.3.9, http://zenodo.org/record/5222398, {"references":["Waterston, J. (1915) On two new species of Mallophaga (Menoponidae): Menacanthus balfouri n. sp. and Myrsidea victrix n. sp. from Colombia. Entomologist's Monthly Magazine, 51, 12 - 16. https: // doi. org / 10.5962 / bhl. part. 7786"]}

Myrsidea attenuata Lei, Chu, Dik, Zou, Wang & Gustafsson, new species (Figs 1–4, 8) Myrsidea sp. 6; Chu et al. 2019: 338. Type host: Garrulax maesi maesi (Oustalet, 1890) – grey laughingthrush (Leiothrichidae). Type locality: Nanling Reservation, Ruyang County, Guangdong Province, China. Diagnosis. Myrsidea attenuata is identified as M. assamensis Tandan, 1972, in the keys to males in Tandan (1972). The same type of genital sclerite, with a single median attenuation, is also found in Myrsidea agarwali Khan et al. 2009. These species can be separated by the thoracic and abdominal chaetotaxy (Table 1), particularly the number of setae on the metanotum and on terga I–II (and in male also tergum III). In addition, Myrsidea attenuata can be separated from M. assamensis by number of setae in the femoral brush of femur III: 19–23 setae in female and 16–21 setae in male in M. attenuata (Figs 1–2), but 24–27 setae in female and 22–25 setae in male in M. assamensis. Males of Myrsidea attenuata can be separated from those of M. agarwali by having distinct gaps between the two median-most seta on each side of terga III–V that are distinctly larger than the gaps between the more lateral tergal setae on the same segments (Fig. 1); in M. agarwali, the tergal setae on these segments are evenly spaced. Also, the genital sclerite of M. agarwali appears to lack the distal attenuated section of the median part, which is present in M. attenuata (Fig. 5). Description. Female (n=3). Habitus as in Fig. 2. Setal measurements: dhs10 = 0.044 –0.050; dhs11 = 0.120 – 0.137; ratio dhs10/11 = 0.35–0.41; ls5 = 0.044 –0.071 Ventrolateral fringe with 10–12 setae. Gula with 4–5 setae on each side. Hypopharynx similar to Fig. 4. First tibia with 2–3 outer lateral ventral and 4–5 dorsal setae. Metanotum with posterior margin straight and 2 setae on each side. Metasternal plate with 4–5 setae on each side. Femoral brush with 19–23 setae. Metanotum and abdomen as in Fig. 2. Posterior margin of tergites straight. Setal rows continuous on segments II–III, with small median gap on segments IV–VIII. Anterior setae absent on terga. Tergal setae: I, 2–4; II, 8–11; III, 12–13; IV, 12–13; V, 10–15; VI, 11; VII, 9–10; VIII, 4–5. Tergum IX with 4–5 medium-sized inner posterior setae on each side. Anterior setae present on sterna II–VI. Sternal setae: I, 0; II, each aster of 3–4 setae, posterior margin with 8–10 setae and anteriorly with 9–10 setae on one side; III, 12–14 (2–3); IV, 16–22 (11–16); V, 20–22 (20–24); VI, 20–21 (18–26); VII, 8–12 (6–10); VIII–IX, 10–15; vulval margin with 12 setae. Anus with 32–38 setae in ventral fringe and 32–38 setae in dorsal fringe; dorsal fringe with small number of short setae (about 1/2 length of other setae) interspersed centrally; all central setae of ventral fringe at most 1/3 of length of lateral setae. Pleural setae: I, 7–10 (0–1); II, 8–11 (1–3); III, 8–10 (4–6); IV, 8–9 (3–5); V, 6–8 (3–5); VI, 3–7 (1–3); VII, 5–6 (1–2), VIII: 3–5 (0–1). Measurements as in Table 2. Male (n=4). Much as in female, habitus as in Fig. 1, head shape as in Fig.3. Setal measurements: dhs10 = 0.038 –0.056; dhs11 = 0.109 –0.127; ratio dhs10/11 = 0.33–0.51; ls5 = 0.040 –0.075. Gular plate with 4 setae on each side (1 male with 5 on one side). Hypopharynx as in Fig. 4. Metanotum with 4–6 setae on posterior margin. Femoral brush with 16–21 setae. Anterior setae absent on terga. Tergal setae: I, 2–4; II, 6; III, 7–8; IV, 10–11; V, 10–11; VI, 8–10; VII, 6–8; VIII, 4. Setal rows with small median gap in at least segments II–VIII. Inner posterior setae present on tergum IX. Anterior setae present on sternites II–VII. Sternal setae: I, 0; II, each aster with 4–5 setae, posterior margin with 15–18, and anteriorly with 23 setae; III, 21–23 (3–4); IV, 21–22 (10–16); V, 20–24 (13–17); VI, 22–24 (17–18); VII, 16 (8–12); VIII–IX, 22–23 (holotype with 8 visible, but many apparently absent). Anus with 8 internal setae on ventral side and 4–5 on dorsal side. Pleural setae: I, 5–6 (0); II, 6–8 (0–1); III, 5–9 (0–3); IV, 7–8 (1–3); V, 6–7 (1–3); VI, 6–7 (1–2); VII, 4–6 (0–2); VIII, 3–4 (0). Genitalia and genital sac sclerite as in Fig. 8. Measurements as in Table 2. Type material: Holotype ♂, Nanling Reservation, Ruyang County, Guangdong Province, China, 11 Apr. 2013, Q. Zhang & Y. Zhang, bird J0819, GD-PHTH-00057 (GIABR). Paratypes: 2♀, Ledongjianfengling, Ledong Coun- ty, Hainan Province, China, 24 Mar. 2015, X. Che & X. Chu, GD-PHTH-00059 and GD-PHTH-000062 (GIABR); 3♂, same data as previous sample, except bird J2570, GD-PHTH-00056 (GIABR); 1♀, same data as previous sample, except bird J2569, GD-PHTH-00063 (GIABR). Non-type specimens: 2 nymphs, same data as holotype, GD-PHTH-00058; 3 nymphs, Ledongjianfengling, Ledong County, Hainan Province, China, 24 Mar. 2015, X. Che & X. Chu, bird J2568, GD-PHTH-00059–61 (GIABR). Etymology. The specific epithet is derived from “ attenuare ”, Latin for “to make slender”, referring to the middle section of the genital sclerite. Remarks. In all females, the dorsal side of the abdomen has been displaced slightly to one side due to mounting, so that the pleurites are visible only on the ventral side. Our illustration of the abdomen is as seen on the slides, without any symmetrical reconstruction.

Myrsidea suthorae Lei, Chu, Dik, Zou, Wang & Gustafsson, new species (Figs 7, 11, 18–19) Myrsidea sp. 11; Chu et al. 2019: 338. Type host: Suthora verreauxi verreuaxi Sharpe, 1883 – golden parrotbill (Paradoxornithidae). Type locality: Laojunshan, Pingshan County, Sichuan Province, China. Diagnosis. Males of Myrsidea suthorae key to couplet 6 in the key of Tandan (1972), but it does not fit any of the two given options. One is M. singularis, but M. suthorae differs by the shape of its unique genital sclerite, and by a proportionately broader genitalia than M. singularis (see Fig. 11 and fig. 53 in Tandan 1972); however, the abdominal chaetotaxy of these two species is very similar and may entirely overlap. The second option in couplet 6 leads to M. sikkimensis Tandan, 1972, M. sehri Ansari, 1951 and M. erythrocephali; however, these three species have no more than 4 setae on tergum I, whereas M. suthorae has at least 8. Moreover, M. suthorae can be separated from all these species by the presence of 2 setae on sternite II in M. suthorae (absent in the other species), and the presence in M. suthorae of 8–9 inner posterior setae on tergum IX (only 2 inner posterior setae in the other species). Description. Male (n=3). Habitus as in Fig. 18 and head shape as in Fig. 19. Setal measurements: dhs10 = 0.044 –0.056; dhs11 = 0.081 –0.104; ratio dhs10/11 = 0.44–0.64; ls5 = 0.045 –0.062. Ventrolateral fringe with 9–10 setae. Gular plate with 5–6 setae on each side. Hypopharynx reduced as in Fig. 7. First tibia with 3 outer lateral ventral and 2–3 dorsal setae. Metanotum with posterior margin straight, with 8–9 setae on posterior margin. Metasternal plate with 7 setae. Femoral brush with 13–15 setae. Metanotum and abdomen as in Fig. 18. Posterior margin of tergites straight, with setal rows interrupted by median gap in at least segments III–IV. Anterior tergal setae absent. Tergal setae: I, 8–9; II, 10–11; III, 10–12; IV, 10–11; V, 10–13; VI, 10–12; VII, 10–12; VIII, 6–8; 8–9 inner posterior setae present on segment IX. Anterior sternal setae present on sterna II–VI. Sternal setae: I, 2; II, each aster of 3 setae, posterior margin with 11–12 setae, and anteriorly with 6 setae; III, 14 (0–2); IV, 18–21 (15–19); V, 21–22 (16–20); VI, 20–21 (16–19); VII, 13–15 (16–22); VIII–IX, 29–33. Anus with 7–9 internal setae on ventral side and 3–4 on dorsal side. Anterior pleural setae absent. More median pleural setae on ventral side very long and slender on segments V–VII, similar to or longer than setae of setal brushes on same segments. Pleural setae: I, 4–5; II, 5–6; III, 6–7; IV, 6; V, 5–6; VI, 4–6; VII, 3–4; VIII, 3. Genitalia and genital sac sclerite as in Fig. 11. Measurements as in Table 3. Female. Unknown. Type material: Holotype ♂, Laojunshan, Pingshan County, Sichuan Province, China, 10 Aug. 2014, Y. Zhao, Y. Zhang, X. Chu, W. Li, bird J2252, GD-PHTH-00055 (GIABR). Paratypes: 1♂, same data as holotype, GD- PHTH-00054 (GIABR). 1♂, same locality and collector as holotype, 7 Aug. 2014, bird J2195, GD-PHTH-00053 (GIABR). Non-type specimens: 3 nymphs, same data as holotype, GD-PHTH-00054–55 (GIABR). Etymology. The specific epithet is derived from the genus of the type host.

Myrsidea zhangae Lei, Chu, Dik, Zou, Wang & Gustafsson, new species (Figs 5, 9, 12–14) Myrsidea sp. 7; Chu et al. 2019: 338. Type host: Ianthocincla berthemyi (Oustalet, 1876) – rusty laughingthrush (Leiothrichidae). Given as “ Garrulax caerulatus ” in Chu et al. (2019: 338), see below. Type locality: Badagongshan, Sangzhi County, Hunan Province, China. Diagnosis. Myrsidea zhangae is identified as M. monilegeri in the key of Tandan (1972). Females of M. monilegeri are unknown, but males of these two species can be separated by the following characters: femoral brush with 26–29 setae in M. monilegeri, but with 18–22 setae in M. zhangae; tergum I with 7 setae in M. monilegeri, but with 3–4 setae in M. zhangae (one specimen of M. zhangae has 9 setae on tergum I); tergum III with 13 setae in M. monilegeri, but with 6–9 setae in M. zhangae; anterior pleural setae present on segments III–VI in M. monilegeri, but only rarely present, and then only on one side, on segments III and V–VI in M. zhangae; sternum II with 27 anterior setae and 20 marginal setae in M. monilegeri, but with 6–11 anterior setae and 10–14 marginal setae in M. zhangae; genital sclerite with median section longer than lateral sections and lateral sections slender distally in M. monilegeri, but genital sclerite with median section shorter than lateral sections, and lateral sections conspicuously widened distally in M. zhangae. Tandan (1972) described two females from Garrulax monileger schauenseei that could not be placed unambiguously in M. monilegeri, and he considered that future collections may resolve this issue. Assuming that Tandan’s females are conspecific with M. monilegeri, the female M. zhangae can be separated M. monilegeri by the following characters: femoral brush with 27–33 setae in specimens from G. m. schauenseei, but with 23–25 setae in M. zhangae; tergum I with 11 setae in specimens from G. m. schauenseei, but with 4 setae in M. zhangae; each aster of sternum II with 5 setae in material from G. m. schauenseei, but with 4 setae in M. zhangae; sternum II with 2–4 anterior setae and 15 marginal setae in material from G. m. schauenseei, but without anterior setae and with 9–12 marginal setae in M. zhangae. However, much of sternum II is obscured by gut contents in all females examined, and the anterior setae of G. m. schauenseei are said to be medio-lateral, which may suggest that those of M. zhangae are located very medianly and thus overlooked. Description. Female (n=5). Habitus as in Fig. 13. Setal measurements: dhs10 = 0.057 –0.072; dhs11 = 0.102 – 0.117; ration dhs10/11 = 0.52–0.66; ls5 = 0.062 –0.073. Ventrolateral fringe with 9–12 setae. Gular plate with 3–4 setae on each side. Hypopharynx similar to Fig. 5. First tibia with 2–3 outer lateral ventral and 2–5 dorsal setae. Metanotum with posterior margin straight and with 4–6 setae on posterior margin. Metasternal plate with 8–10 setae. Femoral brush with 23–25 setae. Metanotum and abdomen as in Fig. 13. Posterior margin of tergites straight. Setal rows continuous on terga I–III or with gaps on terga IV–VIII. Anterior tergal setae absent. Tergal setae: I, 4; II, 9–10; III, 12–16; IV, 12–14; V, 11–14; VI, 9–12; VII, 8–11; VIII, 4–6. Inner posterior setae present on tergite IX. Sternal setae: I, 0; II, each aster of 4 setae, posterior margin with 9–12 setae and anteriorly with 0–1 setae; III, 16–18 (3–7); IV, 21–23 (22–31); V, 21–23 (24–35); VI, 19–20 (27–29); VII, 9–12 (6–12); VIII–IX, 11–16; Vulval margin with 5–14 setae. Pleural setae: I, 7–9 (0); II, 8–11 (0–2); III, 8–10 (1–3); IV, 6–10 (1–2); V, 6–8 (1–3); VI, 6–7 (0–2); VII, 4–6 (0–2); VIII, 3–4 (0). Anus with 30–37 setae in ventral fringe and 30–33 setae in dorsal fringe. About every third central setae of dorsal fringe much shorter than others (about 1/2 length). Measurements as in Table 2. Male (n=9). Much as in female, habitus as in Fig. 12, head shape as in Fig.14. Setal measurements: dhs10 = 0.058 –0.096; dhs11 = 0.096 –0.114; ratio dhs10/11 = 0.55–0.93; ls5 = 0.053 –0.080. Gular plate with 3–4 setae on each side. Hypopharynx as in Fig. 5. Metanotum with 2–6 setae on posterior margin. Femoral brush with 18–22 setae. Anterior setae absent on terga. Tergal setal rows with median gap in all segments. Tergal setae: I, 3–4 (one specimen with 9); II, 5–11; III, 6–9; IV, 8–11; V, 8–10; VI, 8–11; VII, 6–8; VIII, 4. Inner posterior setae present. Anterior setae present on sterna II–VII. Sternal setae: I, 0; II, each aster of 4–5 setae, with 10–14 marginal setae and 6–11 anterior setae; III, 16–18 (3–6); IV, 19–22 (19–26); V, 20–22 (25–26); VI, 17–22 (20–25); VII, 11–14 (7–12); VIII–IX, 14–25. Anus with 6–8 internal setae on ventral side and 3–5 on dorsal side. Pleural setae: I, 5–7 (0–2); II, 6–8 (0); III, 6–7 (0–2); IV, 6–7 (0–1); V, 5–7 (0–1); VI, 5–6 (0–1); VII, 4–5 (0); VIII, 3 (0). Genitalia and genital sac sclerite as in Fig. 9. Measurements as in Table 2. Type material: Holotype ♂, Badagongshan, Sangzhi County, Hunan Province, China, 24 Jul. 2013, D. Su & J. Ma. Bird J1531, GD-PHTH-00020 (GIABR). Paratypes: 8♂, 5♀, same data as holotype, GD-PHTH-00020, 00022, 00027–31 (GIABR). Non-types examined: 9 nymphs, same data as holotype, GD-PHTH-00021, 00023–26, 00029 (GIABR). Etymology. Myrsidea zhangae is named in honour of Dr Zhang Min (GIABR), good friend and colleague of the authors, who was instrumental in helping D.R.G. to settle in China. Remarks. The host of this louse species cannot be confirmed with certainty. As reported by Chu et al. (2019: 338), the host given in the collection data associated with specimens of Myrsidea sp. 7 (now M. zhangae) is Garrulax caerulatus (Hodgson, 1836). However, this bird species is restricted to western Yunnan and north Myanmar (Arlott 2017). It appears that the collectors of the lice misidentified the host bird, which was likely Ianthocincla berthemyi, a species that does occur in Hunan, and which is morphologically similar to Garrulax caerulatus. More collections of lice are needed from both bird species to establish the correct identity of the type host of M. zhangae.

Myrsidea Waterston, 1915: 51 Acolpocephalum Ewing, 1927: 88. Australmenopon Conci, 1942: 30. Allomyrsidea Conci, 1942: 31. Corvomenopon Conci, 1942: 31. Ramphasticola Carriker, 1949: 305. Alcediniphilus Ansari, 1951: 189. Myrsidella Eichler, 1951: 49. Densidea Złotorzycka, 1964: 171. Vulgidea Złotorzycka, 1964: 172. Liquidea Złotorzycka, 1964: 173. Lanimenopon Złotorzycka, 1964: 177. Eichlerinopon Złotorzycka, 1964: 179. Neomyrsidella Złotorzycka, 1964: 182. Wolfdietrichia Złotorzycka, 1973: 51. Type species: Myrsidea victrix Waterston, 1915: 13, by original designation. Type host: Ramphastos ambiguous swainsonii Gould, 1833., Published as part of Lei, Lujia, Chu, Xingzhi, Dik, Bilal, Zou, Fasheng, Wang, Haitao & Gustafsson, Daniel R., 2020, Four new species of Myrsidea (Phthiraptera: Amblycera: Menoponidae) from Chinese babblers (Passeriformes: Leiothrichidae, Paradoxornithidae, Timaliidae), pp. 103-128 in Zootaxa 4878 (1) on page 104, DOI: 10.11646/zootaxa.4878.1.4, http://zenodo.org/record/4564360, {"references":["Waterston, J. (1915) On two new species of Mallophaga (Menoponidae): Menacanthus balfouri n. sp. and Myrsidea victrix n. sp. from Colombia. Entomologist's Monthly Magazine, 51, 12 - 16. https: // doi. org / 10.5962 / bhl. part. 7786","Ewing, H. E. (1927) Descriptions of new genera and species of Mallophaga, together with keys to some related genera of Menoponidae and Philopteridae. Journal of the Washington Academy of Science, 17, 86 - 96.","Conci, C. (1942) Quattro nuovi generi ed una nuova sottofamiglia di Menoponidae dei Passeracei (Mallophaga). Bollettino della Societa Entomologica Italiana, 74 (2 - 3), 30 - 32.","Carriker, M. A., Jr. (1949) Neotropical Mallophaga miscellany. V. New genera and species. Revista Brasileira de Biologia, 9 (3), 297 - 313.","Ansari, M. A. R. (1951) Mallophaga (Amblycera) infesting birds in the Panjab (India). Proceedings of the National Institute of Sciences in India, 17 (2), 127 - 203.","Eichler, W. (1951) Notulae Mallophagologicae. XVII. Die Myrsideen. Zoologischer Anzeiger, 146, 45 - 53.","Zlotorzycka, J. (1964) Mallophaga parasitizing Passeriformes and Pici. I. Subfamilies Dennyinae, Machaerilaeminae, Colpo- cephalinae. Acta Parasitologica Polonica, 12 (17), 165 - 192, 4 pls.","Zlotorzycka, J. (1973) Systematische Stellung und Wirt-Parasit-Beziehungen beim Myrsideen-Komplex der mitteleuropaischen Corviden. Lounais-Hameen Luonto, 46, 46 - 62."]}

Myrsidea liopari Lei, Chu, Dik, Zou, Wang & Gustafsson, new species (Figs 6, 10, 15–17) Myrsidea sp. 10; Chu et al. 2019: 338. Type host: Lioparus chrysotis amoenus (Mayr, 1941) – golden-breasted fulvetta (Paradoxornithidae). Type locality: Ailaoshan, Jingdong County, Yunnan Province, China. Other hosts: Lioparus chrysotis swinhoii (Verreaux, 1871). Diagnosis. The male genital sclerite and lack of hypopharyngeal sclerite of M. liopari places this species close to M. bharat Tandan & Clay, 1971, and M. sabthai Tandan & Clay 1971. As female terga I–II are enlarged in M. liopari, this places this species closest to M. bharat in the key of Tandan & Clay (1971). These two species can be separated by the following characters: female tergum I with 10–11 setae in M. liopari (Fig. 16), but with only 2 setae in M. bharat; female terga IV–V with prominent gaps in the setal rows separating the 2 median setae from the other setae in M. liopari (Fig. 16), but with complete or near complete setal rows in M. bharat; tergum IX with 8–12 inner posterior setae in M. liopari (Fig. 16; see below), but with only 2 inner posterior setae in M. bharat. Males of M. liopari differ from those of M. sabthai by having fewer setae on most terga; there is some overlap on terga I–III, but terga IV–VI have a maximum of 12 setae each in M. liopari, whereas these terga have a minimum of 14 setae each in M. sabthai. Males of M. liopari may have 4 inner posterior setae on tergum IX (Fig. 15), whereas in M. bharat there appears to be only 2; however, some examined specimens of M. liopari have only 2 inner posterior setae in total, or have 1 on one side and 2 on the other. Description. Female (n=8). Habitus as in Fig. 16. Setal measurements: dhs10 = 0.030 –0.056; dhs11 = 0.091 – 0.115; ratio dhs10/11 = 0.27–0.53; ls5 = 0.013 –0.022. Ventrolateral fringe with 8–10 setae. Gular plate with 4 setae on each side. Hypopharynx similar to Fig. 6. First tibia with 3 outer lateral ventral and 3 dorsal setae. Metanotum with posterior margin more or less straight and with 6–12 setae on posterior margin. Metasternal plate with 6–7 setae. Femoral brush with 13–17 setae. Metanotum and abdomen as in Fig. 16. Posterior margin of tergites straight except terga II–III which are arched as in Fig. 16. Setal rows with median gaps on all terga; terga IV–V also with prominent submedian (sensu Smith, 2000) gaps separating single median seta on each side from lateral setae. Anterior tergal setae absent. Tergal setae: I, 10–11; II, 15–17; III, 13–15; IV, 8–13; V, 8–13; VI, 11–13; VII, 11–13; VIII, 10–12; 8–12 inner posterior setae on tergum IX. Anterior sternal setae present on sterna III–VI. Sternal setae: I, 0; II, each aster of 4 setae, posterior margin with 11–15 setae and anteriorly with 8–11 setae; III, 19–24 (3–10); IV, 22–26 (14–23); V, 20–24 (16–23); VI, 18–22 (10–18); VII, 10–11 (7–11); VIII–IX, 17–29; Vulval margin deeply serrated, with 8–12 setae on margin. Anterior pleural setae absent. Pleural setae (on segments I–II thorn-like, but more median setae on ventral side slender; on segment III slender but of roughly same length as on segments I–II; on segments IV–VIII long and slender, similar to setae of sternal brushes): I, 5–8; II, 6–9; III, 6–8; IV, 5–7; V, 4–6; VI, 4–5; VII, 3–4; VIII, 3. Anus with 29–33 setae in ventral fringe and 20–33 setae in dorsal fringe. In median section about 1/3 of ventral setae much shorter than others (about 1/3 of length); all setae of dorsal fringe of roughly similar length. Measurements as in Table 3. Male (n=5). Much as in female, habitus as in Fig. 15, head shape as in Fig. 17. Setal measurements: dhs10 = 0.033 –0.044; dhs11 = 0.083 –0.109; ratio dhs10/11 = 0.38–0.49; ls5 = 0.012 –0.018. Gular plate with 4 setae on each side. Hypopharynx as in Fig. 6. Metanotum with 6–8 setae on posterior margin. Femoral brush with 13–16 setae. Anterior setae absent on terga. Tergal setal rows with pronounced median gaps. Tergal setae: I, 6–8; II, 10–14; III, 11–14; IV, 7–12; V, 9–12; VI, 10–12; VII, 7–10; VIII, 6–7; 2–4 inner posterior setae present on tergum IX. Anterior setae present on sterna II–VII. Sternal setae: I, 0; II, each aster with 3–4, posterior margin with 11–12 setae, and anteriorly with 10–12 setae; III, 14–18 (0–6); IV, 16–22 (9–17); V, 19–20 (14–16); VI, 15–17 (11–15); VII, 9–14 (8–10); VIII–IX, 15–29. Anus with 7–9 internal setae on ventral side and 2–3 on dorsal side. Anterior pleural setae absent. Pleural setae: I, 4–6; II, 5–7; III, 6–7; IV, 5–6; V, 4–6; VI, 3–5; VII, 3; VIII, 3. Genitalia and genital sac sclerite as in Fig. 10. Measurements as in Table 3. Type material: Holotype ♂, Ailaoshan, elev. 2420 m, Jingdong County, Yunnan Province, China, 4 Sep. 2018, D. R, Gustafsson & L. Lei, bird J3745, GD-PHTH-00032 (GIABR). Paratypes: 2♀, same locality and collectors as holotype, 2 Sep. 2018, bird J3735, GD-PHTH-00035–00036 (GIABR). 1♂, 1♀, same locality and collectors as holotype, 29 Aug, 2018, bird J3698, GD-PHTH-00040–41 (GIABR). 2♂, 2♀, Laojunshan, Pingshan County, Sichuan Province, China, 10 Aug. 2014, Y. Zhao, Y. Zhang, X. Chu, W. Li, bird J2261, GD-PHTH-00042–00044 (GIABR). 1♀, same data except bird J2259, GD-PHTH-00042 (GIABR). 1♂, same data except bird J2266, GD- PHTH-00043 (GIABR). 1♀, same data, except bird J2267, GD-PHTH-00049 (GIABR). 1♀, same data, except bird J2268, GD-PHTH-00050 (GIABR). Non-types examined: 2 nymphs, same data as holotype, GD-PHTH-00033–00034 (GIABR). 2 nymphs, same locality and collectors, 2 Sep. 2018, bird J3735, GD-PHTH-00037–38 (GIABR). 2 nymphs, same locality and collectors, 28 Aug. 2018, bird J3698, GD-PHTH-00041 (GIABR). 1 nymph, same locality and collectors, 2 Sep. 2018, bird J3731, GD-PHTH-00039 (GIABR). 1 nymph, Laojunshan, Pingshan County, Sichuan Province, China, 10 Aug. 2014, Y. Zhao, Y. Zhang, X. Chu, W. Li, bird J2261, GD-PHTH-00045 (GIABR). 3 nymphs, same data, except bird J2267, GD-PHTH-00048–00049 (GIABR). 1 nymph, same data except bird J2269, GD-PHTH-00051 (GIABR). Etymology. The specific epithet is derived from the genus of the type host. Remarks. The female head shape of Myrsidea liopari appears to differ among specimens, including those collected from the same host individual, with some of the females having a head shaped as that illustrated for the male (Fig. 15). We have illustrated a female with a rounder anterior head (Fig. 16) to highlight the morphological variation within this species. Specimens from Sichuan (host subspecies L. chrysotis swinhoii) differ from specimens from the type host subspecies by females having 10–12 inner posterior setae on tergum IX (8–9 in specimens from type host). There appears to be no correlation between head shape and locality. Moreover, other characters, including setal counts, are similar among specimens with different head shapes. More specimens and genetic data are needed to confirm whether these specimens represent cryptic species or natural variation in head shape. Since there are no significant morphological differences among specimens collected from the two host subspecies, all specimens are considered conspecific.

Myrsidea liopari Lei, Chu, Dik, Zou, Wang & Gustafsson, new species (Figs 6, 10, 15���17) Myrsidea sp. 10; Chu et al. 2019: 338. Type host: Lioparus chrysotis amoenus (Mayr, 1941) ��� golden-breasted fulvetta (Paradoxornithidae). Type locality: Ailaoshan, Jingdong County, Yunnan Province, China. Other hosts: Lioparus chrysotis swinhoii (Verreaux, 1871). Diagnosis. The male genital sclerite and lack of hypopharyngeal sclerite of M. liopari places this species close to M. bharat Tandan & Clay, 1971, and M. sabthai Tandan & Clay 1971. As female terga I���II are enlarged in M. liopari, this places this species closest to M. bharat in the key of Tandan & Clay (1971). These two species can be separated by the following characters: female tergum I with 10���11 setae in M. liopari (Fig. 16), but with only 2 setae in M. bharat; female terga IV���V with prominent gaps in the setal rows separating the 2 median setae from the other setae in M. liopari (Fig. 16), but with complete or near complete setal rows in M. bharat; tergum IX with 8���12 inner posterior setae in M. liopari (Fig. 16; see below), but with only 2 inner posterior setae in M. bharat. Males of M. liopari differ from those of M. sabthai by having fewer setae on most terga; there is some overlap on terga I���III, but terga IV���VI have a maximum of 12 setae each in M. liopari, whereas these terga have a minimum of 14 setae each in M. sabthai. Males of M. liopari may have 4 inner posterior setae on tergum IX (Fig. 15), whereas in M. bharat there appears to be only 2; however, some examined specimens of M. liopari have only 2 inner posterior setae in total, or have 1 on one side and 2 on the other. Description. Female (n=8). Habitus as in Fig. 16. Setal measurements: dhs10 = 0.030 ���0.056; dhs11 = 0.091 ��� 0.115; ratio dhs10/11 = 0.27���0.53; ls5 = 0.013 ���0.022. Ventrolateral fringe with 8���10 setae. Gular plate with 4 setae on each side. Hypopharynx similar to Fig. 6. First tibia with 3 outer lateral ventral and 3 dorsal setae. Metanotum with posterior margin more or less straight and with 6���12 setae on posterior margin. Metasternal plate with 6���7 setae. Femoral brush with 13���17 setae. Metanotum and abdomen as in Fig. 16. Posterior margin of tergites straight except terga II���III which are arched as in Fig. 16. Setal rows with median gaps on all terga; terga IV���V also with prominent submedian (sensu Smith, 2000) gaps separating single median seta on each side from lateral setae. Anterior tergal setae absent. Tergal setae: I, 10���11; II, 15���17; III, 13���15; IV, 8���13; V, 8���13; VI, 11���13; VII, 11���13; VIII, 10���12; 8���12 inner posterior setae on tergum IX. Anterior sternal setae present on sterna III���VI. Sternal setae: I, 0; II, each aster of 4 setae, posterior margin with 11���15 setae and anteriorly with 8���11 setae; III, 19���24 (3���10); IV, 22���26 (14���23); V, 20���24 (16���23); VI, 18���22 (10���18); VII, 10���11 (7���11); VIII���IX, 17���29; Vulval margin deeply serrated, with 8���12 setae on margin. Anterior pleural setae absent. Pleural setae (on segments I���II thorn-like, but more median setae on ventral side slender; on segment III slender but of roughly same length as on segments I���II; on segments IV���VIII long and slender, similar to setae of sternal brushes): I, 5���8; II, 6���9; III, 6���8; IV, 5���7; V, 4���6; VI, 4���5; VII, 3���4; VIII, 3. Anus with 29���33 setae in ventral fringe and 20���33 setae in dorsal fringe. In median section about 1/3 of ventral setae much shorter than others (about 1/3 of length); all setae of dorsal fringe of roughly similar length. Measurements as in Table 3. Male (n=5). Much as in female, habitus as in Fig. 15, head shape as in Fig. 17. Setal measurements: dhs10 = 0.033 ���0.044; dhs11 = 0.083 ���0.109; ratio dhs10/11 = 0.38���0.49; ls5 = 0.012 ���0.018. Gular plate with 4 setae on each side. Hypopharynx as in Fig. 6. Metanotum with 6���8 setae on posterior margin. Femoral brush with 13���16 setae. Anterior setae absent on terga. Tergal setal rows with pronounced median gaps. Tergal setae: I, 6���8; II, 10���14; III, 11���14; IV, 7���12; V, 9���12; VI, 10���12; VII, 7���10; VIII, 6���7; 2���4 inner posterior setae present on tergum IX. Anterior setae present on sterna II���VII. Sternal setae: I, 0; II, each aster with 3���4, posterior margin with 11���12 setae, and anteriorly with 10���12 setae; III, 14���18 (0���6); IV, 16���22 (9���17); V, 19���20 (14���16); VI, 15���17 (11���15); VII, 9���14 (8���10); VIII���IX, 15���29. Anus with 7���9 internal setae on ventral side and 2���3 on dorsal side. Anterior pleural setae absent. Pleural setae: I, 4���6; II, 5���7; III, 6���7; IV, 5���6; V, 4���6; VI, 3���5; VII, 3; VIII, 3. Genitalia and genital sac sclerite as in Fig. 10. Measurements as in Table 3. Type material: Holotype ♂, Ailaoshan, elev. 2420 m, Jingdong County, Yunnan Province, China, 4 Sep. 2018, D. R, Gustafsson & L. Lei, bird J3745, GD-PHTH-00032 (GIABR). Paratypes: 2♀, same locality and collectors as holotype, 2 Sep. 2018, bird J3735, GD-PHTH-00035���00036 (GIABR). 1♂, 1♀, same locality and collectors as holotype, 29 Aug, 2018, bird J3698, GD-PHTH-00040���41 (GIABR). 2♂, 2♀, Laojunshan, Pingshan County, Sichuan Province, China, 10 Aug. 2014, Y. Zhao, Y. Zhang, X. Chu, W. Li, bird J2261, GD-PHTH-00042���00044 (GIABR). 1♀, same data except bird J2259, GD-PHTH-00042 (GIABR). 1♂, same data except bird J2266, GD- PHTH-00043 (GIABR). 1♀, same data, except bird J2267, GD-PHTH-00049 (GIABR). 1♀, same data, except bird J2268, GD-PHTH-00050 (GIABR). Non-types examined: 2 nymphs, same data as holotype, GD-PHTH-00033���00034 (GIABR). 2 nymphs, same locality and collectors, 2 Sep. 2018, bird J3735, GD-PHTH-00037���38 (GIABR). 2 nymphs, same locality and collectors, 28 Aug. 2018, bird J3698, GD-PHTH-00041 (GIABR). 1 nymph, same locality and collectors, 2 Sep. 2018, bird J3731, GD-PHTH-00039 (GIABR). 1 nymph, Laojunshan, Pingshan County, Sichuan Province, China, 10 Aug. 2014, Y. Zhao, Y. Zhang, X. Chu, W. Li, bird J2261, GD-PHTH-00045 (GIABR). 3 nymphs, same data, except bird J2267, GD-PHTH-00048���00049 (GIABR). 1 nymph, same data except bird J2269, GD-PHTH-00051 (GIABR). Etymology. The specific epithet is derived from the genus of the type host. Remarks. The female head shape of Myrsidea liopari appears to differ among specimens, including those collected from the same host individual, with some of the females having a head shaped as that illustrated for the male (Fig. 15). We have illustrated a female with a rounder anterior head (Fig. 16) to highlight the morphological variation within this species. Specimens from Sichuan (host subspecies L. chrysotis swinhoii) differ from specimens from the type host subspecies by females having 10���12 inner posterior setae on tergum IX (8���9 in specimens from type host). There appears to be no correlation between head shape and locality. Moreover, other characters, including setal counts, are similar among specimens with different head shapes. More specimens and genetic data are needed to confirm whether these specimens represent cryptic species or natural variation in head shape. Since there are no significant morphological differences among specimens collected from the two host subspecies, all specimens are considered conspecific., Published as part of Lei, Lujia, Chu, Xingzhi, Dik, Bilal, Zou, Fasheng, Wang, Haitao & Gustafsson, Daniel R., 2020, Four new species of Myrsidea (Phthiraptera: Amblycera: Menoponidae) from Chinese babblers (Passeriformes: Leiothrichidae, Paradoxornithidae, Timaliidae), pp. 103-128 in Zootaxa 4878 (1) on pages 116-119, DOI: 10.11646/zootaxa.4878.1.4, http://zenodo.org/record/4564360, {"references":["Chu, X., Dik, B., Gustafsson, D. R., Che, X., Zhang, Q. & Zou, F. (2019) The influence of host body size and food guild on prevalence and mean intensity of chewing lice (Phthiraptera) on birds in southern China. Journal of Parasitology, 105, 334 - 344. https: // doi. org / 10.1645 / 17 - 137","Tandan, B. K. & Clay, T. (1971) Contributions towards a revision of Myrsidea Waterston. VI. (Phthiraptera, Amblycera: Menoponidae). Transactions of the Royal Entomological Society of London, 123, 209 - 246. https: // doi. org / 10.1111 / j. 1365 - 2311.1971. tb 00844. x","Smith, V. S. (2000) Basal ischnoceran louse phylogeny (Phthiraptera: Ischnocera: Goniodidae and Heptapsogastridae). Systematic Entomology, 25, 73 - 94. https: // doi. org / 10.1046 / j. 1365 - 3113.2000.00095. x"]}

Myrsidea suthorae Lei, Chu, Dik, Zou, Wang & Gustafsson, new species (Figs 7, 11, 18���19) Myrsidea sp. 11; Chu et al. 2019: 338. Type host: Suthora verreauxi verreuaxi Sharpe, 1883 ��� golden parrotbill (Paradoxornithidae). Type locality: Laojunshan, Pingshan County, Sichuan Province, China. Diagnosis. Males of Myrsidea suthorae key to couplet 6 in the key of Tandan (1972), but it does not fit any of the two given options. One is M. singularis, but M. suthorae differs by the shape of its unique genital sclerite, and by a proportionately broader genitalia than M. singularis (see Fig. 11 and fig. 53 in Tandan 1972); however, the abdominal chaetotaxy of these two species is very similar and may entirely overlap. The second option in couplet 6 leads to M. sikkimensis Tandan, 1972, M. sehri Ansari, 1951 and M. erythrocephali; however, these three species have no more than 4 setae on tergum I, whereas M. suthorae has at least 8. Moreover, M. suthorae can be separated from all these species by the presence of 2 setae on sternite II in M. suthorae (absent in the other species), and the presence in M. suthorae of 8���9 inner posterior setae on tergum IX (only 2 inner posterior setae in the other species). Description. Male (n=3). Habitus as in Fig. 18 and head shape as in Fig. 19. Setal measurements: dhs10 = 0.044 ���0.056; dhs11 = 0.081 ���0.104; ratio dhs10/11 = 0.44���0.64; ls5 = 0.045 ���0.062. Ventrolateral fringe with 9���10 setae. Gular plate with 5���6 setae on each side. Hypopharynx reduced as in Fig. 7. First tibia with 3 outer lateral ventral and 2���3 dorsal setae. Metanotum with posterior margin straight, with 8���9 setae on posterior margin. Metasternal plate with 7 setae. Femoral brush with 13���15 setae. Metanotum and abdomen as in Fig. 18. Posterior margin of tergites straight, with setal rows interrupted by median gap in at least segments III���IV. Anterior tergal setae absent. Tergal setae: I, 8���9; II, 10���11; III, 10���12; IV, 10���11; V, 10���13; VI, 10���12; VII, 10���12; VIII, 6���8; 8���9 inner posterior setae present on segment IX. Anterior sternal setae present on sterna II���VI. Sternal setae: I, 2; II, each aster of 3 setae, posterior margin with 11���12 setae, and anteriorly with 6 setae; III, 14 (0���2); IV, 18���21 (15���19); V, 21���22 (16���20); VI, 20���21 (16���19); VII, 13���15 (16���22); VIII���IX, 29���33. Anus with 7���9 internal setae on ventral side and 3���4 on dorsal side. Anterior pleural setae absent. More median pleural setae on ventral side very long and slender on segments V���VII, similar to or longer than setae of setal brushes on same segments. Pleural setae: I, 4���5; II, 5���6; III, 6���7; IV, 6; V, 5���6; VI, 4���6; VII, 3���4; VIII, 3. Genitalia and genital sac sclerite as in Fig. 11. Measurements as in Table 3. Female. Unknown. Type material: Holotype ♂, Laojunshan, Pingshan County, Sichuan Province, China, 10 Aug. 2014, Y. Zhao, Y. Zhang, X. Chu, W. Li, bird J2252, GD-PHTH-00055 (GIABR). Paratypes: 1♂, same data as holotype, GD- PHTH-00054 (GIABR). 1♂, same locality and collector as holotype, 7 Aug. 2014, bird J2195, GD-PHTH-00053 (GIABR). Non-type specimens: 3 nymphs, same data as holotype, GD-PHTH-00054���55 (GIABR). Etymology. The specific epithet is derived from the genus of the type host., Published as part of Lei, Lujia, Chu, Xingzhi, Dik, Bilal, Zou, Fasheng, Wang, Haitao & Gustafsson, Daniel R., 2020, Four new species of Myrsidea (Phthiraptera: Amblycera: Menoponidae) from Chinese babblers (Passeriformes: Leiothrichidae, Paradoxornithidae, Timaliidae), pp. 103-128 in Zootaxa 4878 (1) on pages 120-122, DOI: 10.11646/zootaxa.4878.1.4, http://zenodo.org/record/4564360, {"references":["Chu, X., Dik, B., Gustafsson, D. R., Che, X., Zhang, Q. & Zou, F. (2019) The influence of host body size and food guild on prevalence and mean intensity of chewing lice (Phthiraptera) on birds in southern China. Journal of Parasitology, 105, 334 - 344. https: // doi. org / 10.1645 / 17 - 137","Tandan, B. K. (1972) Contributions towards a revision of Myrsidea Waterston. VII. (Phthiraptera: Amblycera: Menoponidae). Bulletin of the British Museum (Natural History) Entomology, 27, 371 - 410, 2 pls.","Ansari, M. A. R. (1951) Mallophaga (Amblycera) infesting birds in the Panjab (India). Proceedings of the National Institute of Sciences in India, 17 (2), 127 - 203."]}

Myrsidea attenuata Lei, Chu, Dik, Zou, Wang & Gustafsson, new species (Figs 1���4, 8) Myrsidea sp. 6; Chu et al. 2019: 338. Type host: Garrulax maesi maesi (Oustalet, 1890) ��� grey laughingthrush (Leiothrichidae). Type locality: Nanling Reservation, Ruyang County, Guangdong Province, China. Diagnosis. Myrsidea attenuata is identified as M. assamensis Tandan, 1972, in the keys to males in Tandan (1972). The same type of genital sclerite, with a single median attenuation, is also found in Myrsidea agarwali Khan et al. 2009. These species can be separated by the thoracic and abdominal chaetotaxy (Table 1), particularly the number of setae on the metanotum and on terga I���II (and in male also tergum III). In addition, Myrsidea attenuata can be separated from M. assamensis by number of setae in the femoral brush of femur III: 19���23 setae in female and 16���21 setae in male in M. attenuata (Figs 1���2), but 24���27 setae in female and 22���25 setae in male in M. assamensis. Males of Myrsidea attenuata can be separated from those of M. agarwali by having distinct gaps between the two median-most seta on each side of terga III���V that are distinctly larger than the gaps between the more lateral tergal setae on the same segments (Fig. 1); in M. agarwali, the tergal setae on these segments are evenly spaced. Also, the genital sclerite of M. agarwali appears to lack the distal attenuated section of the median part, which is present in M. attenuata (Fig. 5). Description. Female (n=3). Habitus as in Fig. 2. Setal measurements: dhs10 = 0.044 ���0.050; dhs11 = 0.120 ��� 0.137; ratio dhs10/11 = 0.35���0.41; ls5 = 0.044 ���0.071 Ventrolateral fringe with 10���12 setae. Gula with 4���5 setae on each side. Hypopharynx similar to Fig. 4. First tibia with 2���3 outer lateral ventral and 4���5 dorsal setae. Metanotum with posterior margin straight and 2 setae on each side. Metasternal plate with 4���5 setae on each side. Femoral brush with 19���23 setae. Metanotum and abdomen as in Fig. 2. Posterior margin of tergites straight. Setal rows continuous on segments II���III, with small median gap on segments IV���VIII. Anterior setae absent on terga. Tergal setae: I, 2���4; II, 8���11; III, 12���13; IV, 12���13; V, 10���15; VI, 11; VII, 9���10; VIII, 4���5. Tergum IX with 4���5 medium-sized inner posterior setae on each side. Anterior setae present on sterna II���VI. Sternal setae: I, 0; II, each aster of 3���4 setae, posterior margin with 8���10 setae and anteriorly with 9���10 setae on one side; III, 12���14 (2���3); IV, 16���22 (11���16); V, 20���22 (20���24); VI, 20���21 (18���26); VII, 8���12 (6���10); VIII���IX, 10���15; vulval margin with 12 setae. Anus with 32���38 setae in ventral fringe and 32���38 setae in dorsal fringe; dorsal fringe with small number of short setae (about 1/2 length of other setae) interspersed centrally; all central setae of ventral fringe at most 1/3 of length of lateral setae. Pleural setae: I, 7���10 (0���1); II, 8���11 (1���3); III, 8���10 (4���6); IV, 8���9 (3���5); V, 6���8 (3���5); VI, 3���7 (1���3); VII, 5���6 (1���2), VIII: 3���5 (0���1). Measurements as in Table 2. Male (n=4). Much as in female, habitus as in Fig. 1, head shape as in Fig.3. Setal measurements: dhs10 = 0.038 ���0.056; dhs11 = 0.109 ���0.127; ratio dhs10/11 = 0.33���0.51; ls5 = 0.040 ���0.075. Gular plate with 4 setae on each side (1 male with 5 on one side). Hypopharynx as in Fig. 4. Metanotum with 4���6 setae on posterior margin. Femoral brush with 16���21 setae. Anterior setae absent on terga. Tergal setae: I, 2���4; II, 6; III, 7���8; IV, 10���11; V, 10���11; VI, 8���10; VII, 6���8; VIII, 4. Setal rows with small median gap in at least segments II���VIII. Inner posterior setae present on tergum IX. Anterior setae present on sternites II���VII. Sternal setae: I, 0; II, each aster with 4���5 setae, posterior margin with 15���18, and anteriorly with 23 setae; III, 21���23 (3���4); IV, 21���22 (10���16); V, 20���24 (13���17); VI, 22���24 (17���18); VII, 16 (8���12); VIII���IX, 22���23 (holotype with 8 visible, but many apparently absent). Anus with 8 internal setae on ventral side and 4���5 on dorsal side. Pleural setae: I, 5���6 (0); II, 6���8 (0���1); III, 5���9 (0���3); IV, 7���8 (1���3); V, 6���7 (1���3); VI, 6���7 (1���2); VII, 4���6 (0���2); VIII, 3���4 (0). Genitalia and genital sac sclerite as in Fig. 8. Measurements as in Table 2. Type material: Holotype ♂, Nanling Reservation, Ruyang County, Guangdong Province, China, 11 Apr. 2013, Q. Zhang & Y. Zhang, bird J0819, GD-PHTH-00057 (GIABR). Paratypes: 2♀, Ledongjianfengling, Ledong Coun- ty, Hainan Province, China, 24 Mar. 2015, X. Che & X. Chu, GD-PHTH-00059 and GD-PHTH-000062 (GIABR); 3♂, same data as previous sample, except bird J2570, GD-PHTH-00056 (GIABR); 1♀, same data as previous sample, except bird J2569, GD-PHTH-00063 (GIABR). Non-type specimens: 2 nymphs, same data as holotype, GD-PHTH-00058; 3 nymphs, Ledongjianfengling, Ledong County, Hainan Province, China, 24 Mar. 2015, X. Che & X. Chu, bird J2568, GD-PHTH-00059���61 (GIABR). Etymology. The specific epithet is derived from ��� attenuare ���, Latin for ���to make slender���, referring to the middle section of the genital sclerite. Remarks. In all females, the dorsal side of the abdomen has been displaced slightly to one side due to mounting, so that the pleurites are visible only on the ventral side. Our illustration of the abdomen is as seen on the slides, without any symmetrical reconstruction., Published as part of Lei, Lujia, Chu, Xingzhi, Dik, Bilal, Zou, Fasheng, Wang, Haitao & Gustafsson, Daniel R., 2020, Four new species of Myrsidea (Phthiraptera: Amblycera: Menoponidae) from Chinese babblers (Passeriformes: Leiothrichidae, Paradoxornithidae, Timaliidae), pp. 103-128 in Zootaxa 4878 (1) on pages 105-109, DOI: 10.11646/zootaxa.4878.1.4, http://zenodo.org/record/4564360, {"references":["Chu, X., Dik, B., Gustafsson, D. R., Che, X., Zhang, Q. & Zou, F. (2019) The influence of host body size and food guild on prevalence and mean intensity of chewing lice (Phthiraptera) on birds in southern China. Journal of Parasitology, 105, 334 - 344. https: // doi. org / 10.1645 / 17 - 137","Tandan, B. K. (1972) Contributions towards a revision of Myrsidea Waterston. VII. (Phthiraptera: Amblycera: Menoponidae). Bulletin of the British Museum (Natural History) Entomology, 27, 371 - 410, 2 pls.","Khan, V., Bansal, N., Sychra, O. & Saxena, A. K. (2009) Myrsidea agarwali sp. n. (Pthiraptera: Menoponidae) from Garrulax lineatus lineatus (Passeriformes: Timaliidae). Biologia, 64, 745 - 747. https: // doi. org / 10.2478 / s 11756 - 009 - 0137 - 0"]}

Myrsidea zhangae Lei, Chu, Dik, Zou, Wang & Gustafsson, new species (Figs 5, 9, 12���14) Myrsidea sp. 7; Chu et al. 2019: 338. Type host: Ianthocincla berthemyi (Oustalet, 1876) ��� rusty laughingthrush (Leiothrichidae). Given as ��� Garrulax caerulatus ��� in Chu et al. (2019: 338), see below. Type locality: Badagongshan, Sangzhi County, Hunan Province, China. Diagnosis. Myrsidea zhangae is identified as M. monilegeri in the key of Tandan (1972). Females of M. monilegeri are unknown, but males of these two species can be separated by the following characters: femoral brush with 26���29 setae in M. monilegeri, but with 18���22 setae in M. zhangae; tergum I with 7 setae in M. monilegeri, but with 3���4 setae in M. zhangae (one specimen of M. zhangae has 9 setae on tergum I); tergum III with 13 setae in M. monilegeri, but with 6���9 setae in M. zhangae; anterior pleural setae present on segments III���VI in M. monilegeri, but only rarely present, and then only on one side, on segments III and V���VI in M. zhangae; sternum II with 27 anterior setae and 20 marginal setae in M. monilegeri, but with 6���11 anterior setae and 10���14 marginal setae in M. zhangae; genital sclerite with median section longer than lateral sections and lateral sections slender distally in M. monilegeri, but genital sclerite with median section shorter than lateral sections, and lateral sections conspicuously widened distally in M. zhangae. Tandan (1972) described two females from Garrulax monileger schauenseei that could not be placed unambiguously in M. monilegeri, and he considered that future collections may resolve this issue. Assuming that Tandan���s females are conspecific with M. monilegeri, the female M. zhangae can be separated M. monilegeri by the following characters: femoral brush with 27���33 setae in specimens from G. m. schauenseei, but with 23���25 setae in M. zhangae; tergum I with 11 setae in specimens from G. m. schauenseei, but with 4 setae in M. zhangae; each aster of sternum II with 5 setae in material from G. m. schauenseei, but with 4 setae in M. zhangae; sternum II with 2���4 anterior setae and 15 marginal setae in material from G. m. schauenseei, but without anterior setae and with 9���12 marginal setae in M. zhangae. However, much of sternum II is obscured by gut contents in all females examined, and the anterior setae of G. m. schauenseei are said to be medio-lateral, which may suggest that those of M. zhangae are located very medianly and thus overlooked. Description. Female (n=5). Habitus as in Fig. 13. Setal measurements: dhs10 = 0.057 ���0.072; dhs11 = 0.102 ��� 0.117; ration dhs10/11 = 0.52���0.66; ls5 = 0.062 ���0.073. Ventrolateral fringe with 9���12 setae. Gular plate with 3���4 setae on each side. Hypopharynx similar to Fig. 5. First tibia with 2���3 outer lateral ventral and 2���5 dorsal setae. Metanotum with posterior margin straight and with 4���6 setae on posterior margin. Metasternal plate with 8���10 setae. Femoral brush with 23���25 setae. Metanotum and abdomen as in Fig. 13. Posterior margin of tergites straight. Setal rows continuous on terga I���III or with gaps on terga IV���VIII. Anterior tergal setae absent. Tergal setae: I, 4; II, 9���10; III, 12���16; IV, 12���14; V, 11���14; VI, 9���12; VII, 8���11; VIII, 4���6. Inner posterior setae present on tergite IX. Sternal setae: I, 0; II, each aster of 4 setae, posterior margin with 9���12 setae and anteriorly with 0���1 setae; III, 16���18 (3���7); IV, 21���23 (22���31); V, 21���23 (24���35); VI, 19���20 (27���29); VII, 9���12 (6���12); VIII���IX, 11���16; Vulval margin with 5���14 setae. Pleural setae: I, 7���9 (0); II, 8���11 (0���2); III, 8���10 (1���3); IV, 6���10 (1���2); V, 6���8 (1���3); VI, 6���7 (0���2); VII, 4���6 (0���2); VIII, 3���4 (0). Anus with 30���37 setae in ventral fringe and 30���33 setae in dorsal fringe. About every third central setae of dorsal fringe much shorter than others (about 1/2 length). Measurements as in Table 2. Male (n=9). Much as in female, habitus as in Fig. 12, head shape as in Fig.14. Setal measurements: dhs10 = 0.058 ���0.096; dhs11 = 0.096 ���0.114; ratio dhs10/11 = 0.55���0.93; ls5 = 0.053 ���0.080. Gular plate with 3���4 setae on each side. Hypopharynx as in Fig. 5. Metanotum with 2���6 setae on posterior margin. Femoral brush with 18���22 setae. Anterior setae absent on terga. Tergal setal rows with median gap in all segments. Tergal setae: I, 3���4 (one specimen with 9); II, 5���11; III, 6���9; IV, 8���11; V, 8���10; VI, 8���11; VII, 6���8; VIII, 4. Inner posterior setae present. Anterior setae present on sterna II���VII. Sternal setae: I, 0; II, each aster of 4���5 setae, with 10���14 marginal setae and 6���11 anterior setae; III, 16���18 (3���6); IV, 19���22 (19���26); V, 20���22 (25���26); VI, 17���22 (20���25); VII, 11���14 (7���12); VIII���IX, 14���25. Anus with 6���8 internal setae on ventral side and 3���5 on dorsal side. Pleural setae: I, 5���7 (0���2); II, 6���8 (0); III, 6���7 (0���2); IV, 6���7 (0���1); V, 5���7 (0���1); VI, 5���6 (0���1); VII, 4���5 (0); VIII, 3 (0). Genitalia and genital sac sclerite as in Fig. 9. Measurements as in Table 2. Type material: Holotype ♂, Badagongshan, Sangzhi County, Hunan Province, China, 24 Jul. 2013, D. Su & J. Ma. Bird J1531, GD-PHTH-00020 (GIABR). Paratypes: 8♂, 5♀, same data as holotype, GD-PHTH-00020, 00022, 00027���31 (GIABR). Non-types examined: 9 nymphs, same data as holotype, GD-PHTH-00021, 00023���26, 00029 (GIABR). Etymology. Myrsidea zhangae is named in honour of Dr Zhang Min (GIABR), good friend and colleague of the authors, who was instrumental in helping D.R.G. to settle in China. Remarks. The host of this louse species cannot be confirmed with certainty. As reported by Chu et al. (2019: 338), the host given in the collection data associated with specimens of Myrsidea sp. 7 (now M. zhangae) is Garrulax caerulatus (Hodgson, 1836). However, this bird species is restricted to western Yunnan and north Myanmar (Arlott 2017). It appears that the collectors of the lice misidentified the host bird, which was likely Ianthocincla berthemyi, a species that does occur in Hunan, and which is morphologically similar to Garrulax caerulatus. More collections of lice are needed from both bird species to establish the correct identity of the type host of M. zhangae., Published as part of Lei, Lujia, Chu, Xingzhi, Dik, Bilal, Zou, Fasheng, Wang, Haitao & Gustafsson, Daniel R., 2020, Four new species of Myrsidea (Phthiraptera: Amblycera: Menoponidae) from Chinese babblers (Passeriformes: Leiothrichidae, Paradoxornithidae, Timaliidae), pp. 103-128 in Zootaxa 4878 (1) on pages 109-115, DOI: 10.11646/zootaxa.4878.1.4, http://zenodo.org/record/4564360, {"references":["Chu, X., Dik, B., Gustafsson, D. R., Che, X., Zhang, Q. & Zou, F. (2019) The influence of host body size and food guild on prevalence and mean intensity of chewing lice (Phthiraptera) on birds in southern China. Journal of Parasitology, 105, 334 - 344. https: // doi. org / 10.1645 / 17 - 137","Tandan, B. K. (1972) Contributions towards a revision of Myrsidea Waterston. VII. (Phthiraptera: Amblycera: Menoponidae). Bulletin of the British Museum (Natural History) Entomology, 27, 371 - 410, 2 pls.","Arlott, N. (2017) Birds of South-East Asia. William Collins, London, 432 pp."]}

Myrsidea penensularis Ansari, 1955 Myrsidea penensularis Ansari, 1955c: 53. Myrsidea peninsularis [sic] Ansari, 1956a: 400. Junior primary homonym. Myrsidea peninsularis [sic] Ansari, 1957c: 433, figs 26���34. Junior primary homonym. Current status: Myrsidea penensularis Ansari, 1955c. Type host: Dicrurus macrocercus peninsularis Vieillot. Type locality: None given. Type material: Listed as deposited in the NHML (Ansari 1955c), but it could not be found and is presumed lost., Published as part of Naz, Saima, Najer, Tomas & Gustafsson, Daniel R., 2020, An annotated list of the species of lice (Insecta: Phthiraptera) described by Mohammad A. - R. Ansari, pp. 401-448 in Zootaxa 4809 (3) on page 412, DOI: 10.11646/zootaxa.4809.3.1, http://zenodo.org/record/3936752, {"references":["Ansari, M. A. R. (1955 c) Studies on the Amblyceron Mallophaga infesting birds in Pakistan. Proceedings of the Seventh Pakistan Science Conference, Agriculture, 1955, 51 - 57.","Ansari, M. A. R. (1956 a) Studies on phthirapteran parasites (Mallophaga) infesting birds in the Panjab. The Indian Journal of Entomology, 17 (3), 394 - 400.","Ansari, M. A. R. (1957 c) Studies on the Amblyceran Mallophaga infesting birds in the Panjab. The The Indian Journal of Entomology, 18 (4), 427 - 439."]}

Myrsidea simplex Ansari, 1956 Myrsidea simplex Ansari, 1956f: 168, figs 5a���e. Myrsidea simplex Ansari, 1956k: 61. Junior primary homonym. Current status: Myrsidea simplex Ansari, 1956f. Type host: Catharus fuscater mentalis Sclater & Salvin. Type locality: Oconeque [as Oconegur], Peru. Type material: Holotype male [slide 68003] deposited in the USNM, from the Carriker collection [slide 3301]. In addition, Ansari (1956f: 170) listed an allotype female and paratype females from the Carriker collection, but their location is unknown., Published as part of Naz, Saima, Najer, Tomas & Gustafsson, Daniel R., 2020, An annotated list of the species of lice (Insecta: Phthiraptera) described by Mohammad A. - R. Ansari, pp. 401-448 in Zootaxa 4809 (3) on page 413, DOI: 10.11646/zootaxa.4809.3.1, http://zenodo.org/record/3936752, {"references":["Ansari, M. A. R. (1956 f) A contribution to our knowledge of Myrsidea (Mallophaga: Amblycera) occurring on Turdidea (sens. lat.). Pakistan Journal of Health, 5 (4), 163 - 177.","Ansari, M. A. R. (1956 k) [Eight miscellaneous papers on lice]. Proceedings of the Eighth Pakistan Science Conference, Biology, 54 - 63."]}

Myrsidea sindianus Ansari, 1955 Myrsidea sindianus Ansari, 1955d: 58. Myrsidea sindianus Ansari, 1956a: 400. Junior primary homonym. Myrsidea sindianus Ansari, 1955d; Ansari 1956d: 58, figs 8���10. Current status: Myrsidea sindianus Ansari, 1955d. Type host: Dicrurus hottentottus hottentottus (Linnaeus). Type locality: Rangamati, Bangladesh [as East Pakistan]. Type material: None of the specimens of Myrsidea sindianus deposited in the NHML is marked as type. The single holotype male designated by Ansari (1956d: 59) is presumed lost., Published as part of Naz, Saima, Najer, Tomas & Gustafsson, Daniel R., 2020, An annotated list of the species of lice (Insecta: Phthiraptera) described by Mohammad A. - R. Ansari, pp. 401-448 in Zootaxa 4809 (3) on page 413, DOI: 10.11646/zootaxa.4809.3.1, http://zenodo.org/record/3936752, {"references":["Ansari, M. A. R. (1955 d) Phthirapteran parasites from the Zoological Survey of Pakistan: Karachi. Proceedings of the Seventh Pakistan Science Conference, Agriculture, 58 - 59.","Ansari, M. A. R. (1956 a) Studies on phthirapteran parasites (Mallophaga) infesting birds in the Panjab. The Indian Journal of Entomology, 17 (3), 394 - 400.","Ansari, M. A. R. (1956 d) Description of some new amblyceran Mallophaga from the Zoological Survey Department, Karachi. Pakistan Journal of Science Research, 8 (2), 57 - 61."]}

Myrsidea abidae Ansari, 1956 Myrsidea abidae Ansari, 1956f: 171, figs 7a���f. Myrsidea abidae Ansari, 1956k: 62. Junior primary homonym. Current status: Myrsidea abidae Ansari, 1956f. Type host: Turdus fumigatus aquilonalis (Cherrie). Type locality: La Punta [as Wa Ponta], Venezuela. Type material: Holotype male [slide 67994] deposited in the USNM, from the Carriker collection., Published as part of Naz, Saima, Najer, Tomas & Gustafsson, Daniel R., 2020, An annotated list of the species of lice (Insecta: Phthiraptera) described by Mohammad A. - R. Ansari, pp. 401-448 in Zootaxa 4809 (3) on page 410, DOI: 10.11646/zootaxa.4809.3.1, http://zenodo.org/record/3936752, {"references":["Ansari, M. A. R. (1956 f) A contribution to our knowledge of Myrsidea (Mallophaga: Amblycera) occurring on Turdidea (sens. lat.). Pakistan Journal of Health, 5 (4), 163 - 177.","Ansari, M. A. R. (1956 k) [Eight miscellaneous papers on lice]. Proceedings of the Eighth Pakistan Science Conference, Biology, 54 - 63."]}

Myrsidea (Alcediniphilus) kuluensis Ansari, 1951 Myrsidea (Alcediniphilus) kuluensis Ansari, 1951: 190, figs 25a���d. Current status: Myrsidea sultanpurensis Ansari, 1951; Clay 1966: 382, figs 4, 47, 63. Type host: Ceryle lugubris guttulata Stejneger = Megaceryle lugubris guttulata (Stejneger). In error (Clay 1966: 382). Type locality: Kullu [as Kulu], India. Type material: Holotype female and allotype male deposited in the NHML [slide NHML010659994]. Although this slide is only labelled as ��� TYPE ���, its host data agree with Ansari���s (1951: 191) type information., Published as part of Naz, Saima, Najer, Tomas & Gustafsson, Daniel R., 2020, An annotated list of the species of lice (Insecta: Phthiraptera) described by Mohammad A. - R. Ansari, pp. 401-448 in Zootaxa 4809 (3) on page 410, DOI: 10.11646/zootaxa.4809.3.1, http://zenodo.org/record/3936752, {"references":["Ansari, M. A. R. (1951) Mallophaga (Amblycera) infesting birds in the Panjab (India). Proceedings of the National Institute of Sciences of India, 17 (2), 127 - 203.","Clay, T. (1966) Contributions towards a revision of Myrsidea Waterston. I. (Menoponidae: Mallophaga). Bulletin of the British Museum (Natural History) Entomology, 17, 327 - 395. https: // doi. org / 10.5962 / bhl. part. 14816"]}

Myrsidea flavirostratus Ansari, 1951 Myrsidea flavirostratus Ansari, 1951: 174, figs 18a���c. Current status: Myrsidea flavirostrata Ansari, 1951; Price et al. 2003: 129. Type host: Urocissa flavirostris flavirostris (Blyth). Type locality: Kullu [as Kulu], India. Type material: Holotype female (labelled as ��� TYPE ���) deposited in the NHML [slide NHML010661918]. Two paratype males also in the NHML [slides NHML010661919���20]., Published as part of Naz, Saima, Najer, Tomas & Gustafsson, Daniel R., 2020, An annotated list of the species of lice (Insecta: Phthiraptera) described by Mohammad A. - R. Ansari, pp. 401-448 in Zootaxa 4809 (3) on page 411, DOI: 10.11646/zootaxa.4809.3.1, http://zenodo.org/record/3936752, {"references":["Ansari, M. A. R. (1951) Mallophaga (Amblycera) infesting birds in the Panjab (India). Proceedings of the National Institute of Sciences of India, 17 (2), 127 - 203.","Price, R. D., Hellenthal, R. A., Palma, R. L., Johnson, K. P. & Clayton, D. H. (2003) The Chewing Lice: World Checklist and Biological Overview. Illinois Natural History Survey Special Publication 24. Illinois Natural History Survey, Champaign, Illinois, x + 501 pp."]}

Myrsidea regius Ansari, 1956 Myrsidea regius Ansari, 1956f: 174, figs 9a���i. Myrsidea regius Ansari, 1956k: 62. Junior primary homonym. Current status: Myrsidea regius Ansari, 1956f. Type host: Turdus fumigatus obsoletus Lawrence = Turdus obsoletus Lawrence. Type locality: Costa Rica. Type material: Holotype male [slide 67962] deposited in the USNM, from the Carriker collection [slide 3321]. One slide deposited in the NHML [slide NHML010661045] is labelled ��� paratypes ���, but this word has been crossed out, and replaced with ���Topotypes���. Although the host and collecting data on this slide agree with the data given by Ansari (1956f: 174), the three specimens in this slide are not part of the type series., Published as part of Naz, Saima, Najer, Tomas & Gustafsson, Daniel R., 2020, An annotated list of the species of lice (Insecta: Phthiraptera) described by Mohammad A. - R. Ansari, pp. 401-448 in Zootaxa 4809 (3) on page 412, DOI: 10.11646/zootaxa.4809.3.1, http://zenodo.org/record/3936752, {"references":["Ansari, M. A. R. (1956 f) A contribution to our knowledge of Myrsidea (Mallophaga: Amblycera) occurring on Turdidea (sens. lat.). Pakistan Journal of Health, 5 (4), 163 - 177.","Ansari, M. A. R. (1956 k) [Eight miscellaneous papers on lice]. Proceedings of the Eighth Pakistan Science Conference, Biology, 54 - 63."]}

Myrsidea dukhunensis Ansari, 1951 Myrsidea dukhunensis Ansari, 1951: 187, figs 24a���d. Current status: Myrsidea dukhunensis Ansari, 1951. Type host: Motacilla alba dukhunensis (Sykes). Type locality: Kullu [as Kulu], India. Type material: Holotype male (labelled as ��� TYPE ���) deposited in the NHML [slide NHML010661839]., Published as part of Naz, Saima, Najer, Tomas & Gustafsson, Daniel R., 2020, An annotated list of the species of lice (Insecta: Phthiraptera) described by Mohammad A. - R. Ansari, pp. 401-448 in Zootaxa 4809 (3) on page 411, DOI: 10.11646/zootaxa.4809.3.1, http://zenodo.org/record/3936752, {"references":["Ansari, M. A. R. (1951) Mallophaga (Amblycera) infesting birds in the Panjab (India). Proceedings of the National Institute of Sciences of India, 17 (2), 127 - 203."]}

Myrsidea varia Ansari, 1956 Myrsidea varia Ansari, 1956f: 172, figs 8a���f. Myrsidea varia Ansari, 1956k: 62. Junior primary homonym. Current status: Myrsidea varia Ansari, 1956f. Type host: Turdus ignobilis debilis Hellmayr. Type locality: Huacamayo, Peru. Type material: Holotype male and allotype female [slides 69010] deposited in the USNM, from the Carriker collection [slides 4200a and 4200b respectively]., Published as part of Naz, Saima, Najer, Tomas & Gustafsson, Daniel R., 2020, An annotated list of the species of lice (Insecta: Phthiraptera) described by Mohammad A. - R. Ansari, pp. 401-448 in Zootaxa 4809 (3) on page 414, DOI: 10.11646/zootaxa.4809.3.1, http://zenodo.org/record/3936752, {"references":["Ansari, M. A. R. (1956 f) A contribution to our knowledge of Myrsidea (Mallophaga: Amblycera) occurring on Turdidea (sens. lat.). Pakistan Journal of Health, 5 (4), 163 - 177.","Ansari, M. A. R. (1956 k) [Eight miscellaneous papers on lice]. Proceedings of the Eighth Pakistan Science Conference, Biology, 54 - 63."]}

Myrsidea rohi Ansari, 1956 Myrsidea rohi Ansari, 1956f: 170, figs 6a���f. Myrsidea rohi Ansari, 1956k: 62. Junior primary homonym. Current status: Myrsidea rohi Ansari, 1956f. Type host: Catharus gracilirostris gracilirostris Salvin. Type locality: Irazu Volcano; Costa Rica. Type material: Holotype male designated by Ansari (1956f: 171) deposited in the USNM [slide 67998], but the slide is incorrectly labelled as ��� lectotype ���. The location of the allotype female and six paratypes is unknown, presumed lost., Published as part of Naz, Saima, Najer, Tomas & Gustafsson, Daniel R., 2020, An annotated list of the species of lice (Insecta: Phthiraptera) described by Mohammad A. - R. Ansari, pp. 401-448 in Zootaxa 4809 (3) on page 412, DOI: 10.11646/zootaxa.4809.3.1, http://zenodo.org/record/3936752, {"references":["Ansari, M. A. R. (1956 f) A contribution to our knowledge of Myrsidea (Mallophaga: Amblycera) occurring on Turdidea (sens. lat.). Pakistan Journal of Health, 5 (4), 163 - 177.","Ansari, M. A. R. (1956 k) [Eight miscellaneous papers on lice]. Proceedings of the Eighth Pakistan Science Conference, Biology, 54 - 63."]}

Myrsidea satbhai Ansari, 1951 Myrsidea satbhai Ansari, 1951: 178, figs 20a���h. Current status: Myrsidea satbhai Ansari, 1951. Type host: Turdoides terricolor terricolor (Hodgson) = Turdoides striata (Dumont) Type locality: Faisalabad [as Lyallpur, Punjab], Pakistan. Type material: Holotype female (labelled as ��� TYPE ���) deposited in the the NHML [slide NHML 010661099]. There are three further slides of M. satbhai in the NHML, each labelled as ��� PARATYPE ��� [NHML 010661102, 010661103, 010661104] including a total of 10 lice with locality data in agreement with Ansari���s (1951: 180) text, but without the date. Considering that Ansari (1951: 180) only listed the holotype, the allotype male and a paratype female, it is obvious that seven of those ��� paratypes ��� have no type status. One male, with the note ���Fig. d genitalia��� written in pencil, may be the allotype, but it cannot be confirmed because there is at least another male in the series. It is likely that the mislabeling of this large series as paratypes happened during the study made by Tandan & Clay (1971: 216) who, in addition to the holotype and allotype, listed a total of four females, three males, and one nymph as paratypes of M. satbhai., Published as part of Naz, Saima, Najer, Tomas & Gustafsson, Daniel R., 2020, An annotated list of the species of lice (Insecta: Phthiraptera) described by Mohammad A. - R. Ansari, pp. 401-448 in Zootaxa 4809 (3) on pages 412-413, DOI: 10.11646/zootaxa.4809.3.1, http://zenodo.org/record/3936752, {"references":["Ansari, M. A. R. (1951) Mallophaga (Amblycera) infesting birds in the Panjab (India). Proceedings of the National Institute of Sciences of India, 17 (2), 127 - 203.","Tandan, B. K. & Clay, T. (1971) Contributions towards a revision of Myrsidea Waterston. VI. (Phthiraptera: Amblycera: Menoponidae). Transactions of the Royal Entomological Society of London, 123, 209 - 246. https: // doi. org / 10.1111 / j. 1365 - 2311.1971. tb 00844. x"]}

Myrsidea sehri Ansari, 1951 Myrsidea sehri Ansari, 1951: 177, figs 19a���d. Current status: Myrsidea sehri Ansari, 1951. Type host: Trochalopteron lineatum grisescentior (Hartert) = Trochalopteron lineatum (Vigors). Type locality: Kullu [as Kulu], India. Type material: Holotype female (labelled as ��� TYPE ���) and allotype male in the NHML [slide NHML010661117]., Published as part of Naz, Saima, Najer, Tomas & Gustafsson, Daniel R., 2020, An annotated list of the species of lice (Insecta: Phthiraptera) described by Mohammad A. - R. Ansari, pp. 401-448 in Zootaxa 4809 (3) on page 413, DOI: 10.11646/zootaxa.4809.3.1, http://zenodo.org/record/3936752, {"references":["Ansari, M. A. R. (1951) Mallophaga (Amblycera) infesting birds in the Panjab (India). Proceedings of the National Institute of Sciences of India, 17 (2), 127 - 203."]}

Myrsidea pyriglenae, new species (Figs 14–17, 27, 43–44) Type host. Pyriglena leucoptera (Vieillot, 1818) —white-shouldered fire-eye. Type locality. San Rafael National Park, Paraguay (26°30'S, 55°47'W). Type material. Ex Pyriglena leucoptera: holotype ♀, San Rafael National Park, Paraguay (26°30'S, 55°47'W), 21 August 2012, I. Literak (MMBC). Paratypes: 6♀, 7♂ with the same data as holotype (MMBC). Diagnosis. Myrsidea pyriglenae belongs to the mcleannani species group (sensu Price et al. 2008b), based on the shape of the male genital sac sclerite and the deeply serrated female vulvar margin. According to setal counts and measurements, it is morphologically similar to M. milleri Price, Johnson & Dalgleish, 2008 ex Gymnopithys rufigula (Boddaert, 1783) from Venezuela. However, females of M. pyriglenae n. sp. are distinguished from those of M. milleri by having (1) modified tergites, especially enlarged tergite II (Fig. 27), and (2) larger number of setae on tergite VII (14–16 vs 6–10), tergite VIII (8–9 vs 4), and on anal fringe (83–88 vs 64–74). Males of M. pyriglenae differ from those of M. milleri by having a larger number of setae on tergites VII (11–15 vs 7–9) and VIII (7–8 vs 4). In addition, the host species of these two species of Myrsidea (Pyriglena leucoptera and Gymnopithys rufigula) have different geographical distributions (Clements et al. 2017) and are not phylogenetically closely related (Isler et al. 2013). Considering genetic data, M. pyriglenae is closest to M. patersoni Price & Johnson, 2009 (see Remarks below), but these two species clearly differ in such significant characters as (1) female tergites having completely different shapes (compare Fig. 27 with fig. 3 in Price & Johnson 2009), and (2) completely different genital sac sclerite in males (compare Figs 14–17 with fig. 4 in Price & Johnson 2009). Description. Female (n = 4). As in Figs 27 and 43. Head with lateral sides of preantennal region conspicuously concave. Hypopharyngeal sclerites fully developed. Length of dhs 10, 0.050–0.064; dhs 11, 0.100– 0.113; ratio dhs 10/11, 0.44–0.63; ls5 0.04–0.05 long, latero-ventral fringe with 9–10 setae. Gula with 4–5 setae on each side. Pronotum with 6 setae on posterior margin and 3 short spiniform setae at each lateral corner. First tibia with 3 outer ventro-lateral and 4 dorso-lateral setae. Metanotum not enlarged, with 4–7 marginal setae; metasternal plate with 6–7 setae; metapleurites with 3–4 short strong spiniform setae. Femur III with 14–16 setae in ventral setal brush. Tergites modified as on Fig. 27, with enlarged tergite II and widely convex posterior margin of tergites II and III. Abdominal segments with well-defined median gap in each row of tergal setae. Tergal setae: I, 5–8; II, 6– 8; III, 11–12; IV–V, 15–18; VI, 15–17; VII, 14–16; VIII, 8–9. Postspiracular setae very long on II, IV, VII and VIII (0.35–0.45); long on I (0.23); and short on III, V and VI (0.11–0.16). Inner posterior seta of last tergum not longer than anal fringe setae with length 0.07–0.09 inserted 0.060–0.075 from base of each very long seta; length of short lateral marginal seta of last segment, 0.03–0.04. Pleural setae: I, 6–8; II, 7–10; III, 7–9; IV, 8; V, 6–7; VI, 6; VII, 4– 5; VIII, 3. Pleurites V–VII with 1–2 somewhat slender and longer setae. Pleurite VIII with inner setae (0.06–0.08) as long as outer (0.05–0.06). Anterior margin of sternal plate II with a medial notch. Sternal setae: I, 0; II, 4–6 in each aster: s1, 0.08–0.10; s2, 0.08–0.09; s3, 0.07–0.08; s4, 0.05–0.06; s5, 0.04; with 14–16 marginal setae between asters, 4–7 medioanterior; III, 27–30; IV, 3 3–36; V, 32–39; VI, 28–36; VII, 23–25; VIII–IX, 15–18; and 9–13 setae on deeply serrated vulvar margin; sternites without medioanterior setae. Anal fringe formed by 38–43 dorsal and 42–46 ventral setae. Dimensions: TW, 0.46–0.48; POW, 0.35; HL, 0.28–0.34; PW, 0.29–0.30; MW, 0.44–0.48; AWIV, 0.61–0.66; ANW, 0.21–0.26; TL, 1.55–1.63. Male (n = 4). As in Fig. 44. Similar to female except as follows: length of dhs 10, 0.040–0.058; dhs 11, 0.089– 0.100; ratio dhs 10/11, 0.45–0.64; ls5 0.04 long, latero-ventral fringe with 9–10 setae. Gula with 5 (one specimen with 4 on one side) setae on each side. First tibia with 3 outer ventro-lateral and 4–5 dorso-lateral setae. Metanotum not enlarged with 4 marginal setae; metasternal plate with 5–6 setae; metapleurites with 3 short spiniform strong setae. Femur III with 11–13 setae in ventral setal brush. Abdominal segments with well-defined median gap in each row of tergal setae. Tergal setae: I, 6–8; II, 6–11; III, 14–15; IV, 13–16; V, 15–17; VI, 14–18; VII, 11–15; VIII, 7–8. Postspiracular setae same with the same pattern as in female but shorter. Length of inner posterior seta of last tergum, 0.04–0.06; short lateral marginal seta of last segment, 0.02. Pleural setae: I, 5–6; II, 6–7; III, 7–8; IV, 6–7; V, 5–7; VI, 5–6; VII, 4; VIII, 3. Pleurites IV–VII with 0–3 slender and longer setae. Pleurite VIII with inner setae (0.04–0.05) as long as outer (0.04–0.05). Anterior margin of sternal plate II with a medial notch. Sternal setae: I, 0; II, 4–5 in each aster: s1, 0.08–0.09; s2, 0.07–0.08; s3, 0.06; s4, 0.05–0.06; s5, 0.03; with 12–15 marginal setae between asters, 4–7 medioanterior; III, 1 9–27; IV, 25–29; V, 26–32; VI, 25–27; VII, 19–22; VIII, 7–11; remainder of plate, 8–11; and with 3–4 setae posteriorly; with 8–9 internal anal setae. Genital sac sclerite as in Figs 14–17. Dimensions: TW, 0.41–0.43; POW, 0.31–0.32; HL, 0.27–0.30; PW, 0.26–0.28; MW, 0.35–0.38; AWIV, 0.46–0.47; GW, 0.10–0.11; GSL, 0.08–0.09; TL, 1.25–1.33. Etymology. The species epithet is a noun in apposition derived from the generic name of the type host. Remarks. This is the first record of Myrsidea from Pyriglena leucoptera. A portion of COI gene was sequenced from specimens of M. pyriglenae from Paraguay (GenBank MF563533). Comparing our sequence with other known sequences of Neotropical Myrsidea, the divergences exceeded 18% in all cases, the closest being that of M. patersoni Price & Johnson, 2009 (ex Eucometis penicillata (Spix, 1825), family Thraupidae, GenBank GQ454448), with a p-distance of 18.2%. Unfortunately, there are no genetic sequences known from M. milleri, the species morphologically closest to M. pyriglenae. However, considering the combination of morphological differences with M. patersoni and M. milleri, and the large sequence divergence with M. patersoni, we are confident that M. pyriglenae is a new, separate species.

Myrsidea dalgleishi Valim, Price & Johnson, 2011 Myrsidea sp. 2; Sychra et al. 2007: 123, fig. 13. Myrsidea dalgleishi Valim, Price & Johnson, 2011: 10, figs 28–29, 33–35. Type host. Glyphorynchus spirurus (Vieillot, 1819) —wedge-billed woodcreeper. Type locality. San José, Tinamaste, 12 km SW San Isidro de El General, Costa Rica. Material examined. Ex Glyphorynchus spirurus: 1♀, Barbilla National Park, Provincia Limón, Costa Rica (09°59'N, 85°27'W), 3 September 2004, I. Literak, M. Capek & M. Havlicek (INBIO—O. Sychra CR 10). Remarks. Here we confirm that a female described as “ Myrsidea sp. 2” by Sychra et al. (2007) is conspecific with M. dalgleishi originally described from G. spirurus from a different location in Costa Rica. Our specimen differ from the original description of M. dalgleishi by setal counts and dimensions, as follows [data from Valim et al. (2011) are in parentheses]: Female (n = 1). Length of dhs 10, 0.065 (0.03); dhs 11, 0.102 (0.09); ratio dhs 10/11, 0.64 (0.33). Gula with 5– 6 (4–5) setae on each side. Tergal setae: II, 12 (8–10); IV, 12 (9–11); VI, 7 (10–11); VII, 4 (7–8); VIII, 4 (5–6). Sternal setae: IV, 26 (22–24); VI, 23 (19–21). Dimensions: TW, 0.42 (0.41); PW, 0.26 (0.24–0.25); AWIV, 0.53 (0.50–0.51)., Published as part of Kolencik, Stanislav, Sychra, Oldrich, Papousek, Ivo, Kuabara, Kamila M. D., Valim, Michel P. & Literak, Ivan, 2018, New species and additional data on the chewing louse genus Myrsidea (Phthiraptera: Menoponidae) from wild Neotropical Passeriformes (Aves), pp. 401-431 in Zootaxa 4418 (5) on page 407, DOI: 10.11646/zootaxa.4418.5.1, http://zenodo.org/record/1244956, {"references":["Valim, M. P., Price, R. D. & Johnson, K. P. (2011) New host records and descriptions of five new species of Myrsidea Waterston chewing lice (Phthiraptera: Menoponidae) from passerines (Aves: Passeriformes). Zootaxa, 3097, 1 - 19.","Sychra, O., Literak, I., Capek, M. & Havlicek, M. (2007) Chewing lice (Phthiraptera) from ovenbirds, leaftossers and woodcreepers (Passeriformes: Furnariidae: Furnariinae, Sclerurinae, Dendrocolaptinae) from Costa Rica, with descriptions of four new species of the genera Rallicola and Myrsidea. Caribbean Journal of Science, 43 (1), 117 - 126. https: // doi. org / 10.18475 / cjos. v 43 i 1. a 11"]}

Myrsidea leptopogoni, new species (Figs 29, 38–39, 47–48) Type host. Leptopogon superciliaris Tschudi, 1844 —slaty-capped flycatcher. Type locality. San Rafael National Park, Paraguay (26°30'S, 55°47'W). Type material. Ex Leptopogon superciliaris: holotype ♀, Tapantí National Park, Sector Tapantí, Costa Rica (09°46'N, 83°47'W), 8 August 2009, O. Sychra & I. Literak (MMBC). Paratypes: 2♂ with the same data as holotype (MMBC). Diagnosis. Myrsidea leptopogoni n. sp. is morphologically close to M. rekasii Dalgleish & Price, 2003 —from species of Pipridae—in setal counts and the shape of tergites, but both sexes of M. leptopogoni have larger dimensions. Furthermore, the female of M. leptopogoni can also be distinguished by the absence of a median gap among setae on tergite I (Fig. 29), and the male by the number of setae on tergites I–III (total 35–36 vs 19–28 in M. rekasii). Among the species of Myrsidea from members of the Tyrannidae, the closest morphological species to M. leptopogoni is M. oleaginei, but females can be easily distinguished by the shape of tergites I–II, being U-shaped in M. leptopogoni (Fig. 29), but V-shaped in M. oleaginei. Description. Female (n = 1). As in Figs 29 and 47. Hypopharyngeal sclerites fully developed. Length of dhs 10, 0.035; dhs 11, 0.098; ratio dhs 10/11, 0.36; ls5 0.04 long, latero-ventral fringe with 10 setae. Gula with 4–5 setae on each side. Pronotum with 6 setae on posterior margin and 3 short spiniform setae at each lateral corner. First tibia with 3 outer ventro-lateral and 3 dorso-lateral setae. Metanotum not enlarged, with 10 marginal setae; metasternal plate with 6 setae; metapleurites with 4 short strong spiniform setae. Femur III with 14–15 setae in ventral setal brush. Tergites modified as on Fig. 29. Tergite I enlarged, compressing II–IV at midline. Abdominal segments with constant row of tergal setae on tergite I and with well-defined median gap on tergites II–VIII. Tergal setae: I, 14; II, 17; III, 13; IV, 10; V, 11; VI, 10; VII, 7; VIII, 4. Postspiracular setae very long on II, IV and VIII (0.44–0.48); long on I and VII (0.29–0.33); and short on III, V and VI (0.13–0.16). Inner posterior seta of last tergum not longer than anal fringe setae with length 0.07; length of short lateral marginal seta of last segment, 0.03–0.05. Pleural setae: I, 6; II, 9; III, 8; IV, 7–8; V, 7; VI, 6; VII, 5; VIII, 3. Pleurites with only short spine-like setae. Pleurite VIII with inner setae (0.07) longer as outer (0.05). Anterior margin of sternal plate II with a medial notch. Sternal setae: I, 0; II, 4 in each aster: s1, 0.10; s2, 0.06; s3, 0.05; s4, 0.04; with 17 marginal setae between asters, 5 medioanterior; III, 22; IV, 30; V, 32; VI, 29; VII, 15; VIII–IX, 9; and 12 setae on deeply serrated vulvar margin. Anal fringe formed by 32 dorsal and 32 ventral setae. Dimensions: TW, 0.45; POW, 0.35; HL, 0.27; PW, 0.27; MW, 0.42; AWIV, 0.55; ANW, 0.22; TL, 1.45. Male (n = 2). As in Fig. 48. Similar to female except as follows: length of dhs 10, 0.022–0.035; dhs 11, 0.091– 0.095; ratio dhs 10/11, 0.24–0.37; ls5 0.02–0.04 long, latero-ventral fringe with 9 setae. Gula with 4 setae on each side. Pronotum with 6 setae on posterior margin and 3 short spiniform setae at each lateral corner. First tibia with 3 outer ventro-lateral and 3–4 dorso-lateral setae. Metanotum not enlarged with 7–8 marginal setae; metasternal plate with 6 setae; metapleurites with 3 short spiniform strong setae. Femur III with 12 setae in ventral setal brush. Abdominal segments with well-defined median gap in each row of tergal setae. Tergal setae: I, 10; II, 13; III, 12– 13; IV, 11–13; V, 9–11; VI, 10; VII, 6–9; VIII, 4–6. Length of inner posterior seta of last tergum, 0.05–0.06; short lateral marginal seta of last segment, 0.02. Pleural setae: I, 5; II, 5–6; III, 6–7; IV, 6; V, 6; VI, 6; VII, 4–5; VIII, 3. Pleurites with only short spine-like setae. Pleurite VIII with inner setae (0.05) as long as outer (0.03). Anterior margin of sternal plate II with a medial notch. Sternal setae: I, 0; II, 4 in each aster: s1, 0.08–0.10; s2, 0.05–0,08; s3, 0.04–0.06; s4, 0.03–0.05; with 14 marginal setae between asters, 4–6 medioanterior; III, 1 9–20; IV, 23–25; V, 27–29; VI, 23–24; VII, 15–16; VIII, 5–6; remainder of plate, 7; and with 3 setae posteriorly. With 8 internal anal setae. Genital sac sclerite as in Figs 38–39. Dimensions: TW, 0.40; POW, 0.31–0.32; HL, 0.25; PW, 0.25; MW, 0.34; AWIV, 0.44; GW, 0.11; GSL, 0.10; TL, 1.16–1.23. Etymology. This species epithet is a noun in apposition derived from the generic name of the type host. Remarks. This is the first record of chewing lice from Leptopogon superciliaris. A portion of COI gene was sequenced from specimens of M. leptopogoni from Costa Rica (GenBank MF563538). Comparing our sequence with other known sequences of Neotropical Myrsidea, the divergences exceeded 18% in all cases, including that with the morphologically close species M. oleaginei (ex Mionectes oleagineus, family Tyrannidae, GenBank KF048108), with a p-distance of 25.6%. The closest p-distance was with that of M. cnemotriccola (ex Cnemotriccus fuscatus, family Tyrannidae, GenBank KF048124), with a value of 18.1%. Unfortunately, there are no genetic sequences known from M. rekasii, the species morphologically closest to M. leptopogoni. However, considering the combination of morphological differences between M. oleaginei and M. rekasii, and the large sequence divergence with M. oleaginei, we are confident that M. leptopogoni is a new, separate species., Published as part of Kolencik, Stanislav, Sychra, Oldrich, Papousek, Ivo, Kuabara, Kamila M. D., Valim, Michel P. & Literak, Ivan, 2018, New species and additional data on the chewing louse genus Myrsidea (Phthiraptera: Menoponidae) from wild Neotropical Passeriformes (Aves), pp. 401-431 in Zootaxa 4418 (5) on page 427, DOI: 10.11646/zootaxa.4418.5.1, http://zenodo.org/record/1244956, {"references":["Dalgleish, R. C. & Price, R. D. (2003) Four new species of Myrsidea (Phthiraptera: Menoponidae) from manakins (Passeriformes: Pipridae). New York Entomological Society, 111 (4), 167 - 173. https: // doi. org / 10.1664 / 0028 - 7199 (2003) 111 [0167: FNSOMP] 2.0. CO; 2"]}

Myrsidea pyriglenae, new species (Figs 14–17, 27, 43–44) Type host. Pyriglena leucoptera (Vieillot, 1818) —white-shouldered fire-eye. Type locality. San Rafael National Park, Paraguay (26°30'S, 55°47'W). Type material. Ex Pyriglena leucoptera: holotype ♀, San Rafael National Park, Paraguay (26°30'S, 55°47'W), 21 August 2012, I. Literak (MMBC). Paratypes: 6♀, 7♂ with the same data as holotype (MMBC). Diagnosis. Myrsidea pyriglenae belongs to the mcleannani species group (sensu Price et al. 2008b), based on the shape of the male genital sac sclerite and the deeply serrated female vulvar margin. According to setal counts and measurements, it is morphologically similar to M. milleri Price, Johnson & Dalgleish, 2008 ex Gymnopithys rufigula (Boddaert, 1783) from Venezuela. However, females of M. pyriglenae n. sp. are distinguished from those of M. milleri by having (1) modified tergites, especially enlarged tergite II (Fig. 27), and (2) larger number of setae on tergite VII (14–16 vs 6–10), tergite VIII (8–9 vs 4), and on anal fringe (83–88 vs 64–74). Males of M. pyriglenae differ from those of M. milleri by having a larger number of setae on tergites VII (11–15 vs 7–9) and VIII (7–8 vs 4). In addition, the host species of these two species of Myrsidea (Pyriglena leucoptera and Gymnopithys rufigula) have different geographical distributions (Clements et al. 2017) and are not phylogenetically closely related (Isler et al. 2013). Considering genetic data, M. pyriglenae is closest to M. patersoni Price & Johnson, 2009 (see Remarks below), but these two species clearly differ in such significant characters as (1) female tergites having completely different shapes (compare Fig. 27 with fig. 3 in Price & Johnson 2009), and (2) completely different genital sac sclerite in males (compare Figs 14–17 with fig. 4 in Price & Johnson 2009). Description. Female (n = 4). As in Figs 27 and 43. Head with lateral sides of preantennal region conspicuously concave. Hypopharyngeal sclerites fully developed. Length of dhs 10, 0.050–0.064; dhs 11, 0.100– 0.113; ratio dhs 10/11, 0.44–0.63; ls5 0.04–0.05 long, latero-ventral fringe with 9–10 setae. Gula with 4–5 setae on each side. Pronotum with 6 setae on posterior margin and 3 short spiniform setae at each lateral corner. First tibia with 3 outer ventro-lateral and 4 dorso-lateral setae. Metanotum not enlarged, with 4–7 marginal setae; metasternal plate with 6–7 setae; metapleurites with 3–4 short strong spiniform setae. Femur III with 14–16 setae in ventral setal brush. Tergites modified as on Fig. 27, with enlarged tergite II and widely convex posterior margin of tergites II and III. Abdominal segments with well-defined median gap in each row of tergal setae. Tergal setae: I, 5–8; II, 6– 8; III, 11–12; IV–V, 15–18; VI, 15–17; VII, 14–16; VIII, 8–9. Postspiracular setae very long on II, IV, VII and VIII (0.35–0.45); long on I (0.23); and short on III, V and VI (0.11–0.16). Inner posterior seta of last tergum not longer than anal fringe setae with length 0.07–0.09 inserted 0.060–0.075 from base of each very long seta; length of short lateral marginal seta of last segment, 0.03–0.04. Pleural setae: I, 6–8; II, 7–10; III, 7–9; IV, 8; V, 6–7; VI, 6; VII, 4– 5; VIII, 3. Pleurites V–VII with 1–2 somewhat slender and longer setae. Pleurite VIII with inner setae (0.06–0.08) as long as outer (0.05–0.06). Anterior margin of sternal plate II with a medial notch. Sternal setae: I, 0; II, 4–6 in each aster: s1, 0.08–0.10; s2, 0.08–0.09; s3, 0.07–0.08; s4, 0.05–0.06; s5, 0.04; with 14–16 marginal setae between asters, 4–7 medioanterior; III, 27–30; IV, 3 3–36; V, 32–39; VI, 28–36; VII, 23–25; VIII–IX, 15–18; and 9–13 setae on deeply serrated vulvar margin; sternites without medioanterior setae. Anal fringe formed by 38–43 dorsal and 42–46 ventral setae. Dimensions: TW, 0.46–0.48; POW, 0.35; HL, 0.28–0.34; PW, 0.29–0.30; MW, 0.44–0.48; AWIV, 0.61–0.66; ANW, 0.21–0.26; TL, 1.55–1.63. Male (n = 4). As in Fig. 44. Similar to female except as follows: length of dhs 10, 0.040–0.058; dhs 11, 0.089– 0.100; ratio dhs 10/11, 0.45–0.64; ls5 0.04 long, latero-ventral fringe with 9–10 setae. Gula with 5 (one specimen with 4 on one side) setae on each side. First tibia with 3 outer ventro-lateral and 4–5 dorso-lateral setae. Metanotum not enlarged with 4 marginal setae; metasternal plate with 5–6 setae; metapleurites with 3 short spiniform strong setae. Femur III with 11–13 setae in ventral setal brush. Abdominal segments with well-defined median gap in each row of tergal setae. Tergal setae: I, 6–8; II, 6–11; III, 14–15; IV, 13–16; V, 15–17; VI, 14–18; VII, 11–15; VIII, 7–8. Postspiracular setae same with the same pattern as in female but shorter. Length of inner posterior seta of last tergum, 0.04–0.06; short lateral marginal seta of last segment, 0.02. Pleural setae: I, 5–6; II, 6–7; III, 7–8; IV, 6–7; V, 5–7; VI, 5–6; VII, 4; VIII, 3. Pleurites IV–VII with 0–3 slender and longer setae. Pleurite VIII with inner setae (0.04–0.05) as long as outer (0.04–0.05). Anterior margin of sternal plate II with a medial notch. Sternal setae: I, 0; II, 4–5 in each aster: s1, 0.08–0.09; s2, 0.07–0.08; s3, 0.06; s4, 0.05–0.06; s5, 0.03; with 12–15 marginal setae between asters, 4–7 medioanterior; III, 1 9–27; IV, 25–29; V, 26–32; VI, 25–27; VII, 19–22; VIII, 7–11; remainder of plate, 8–11; and with 3–4 setae posteriorly; with 8–9 internal anal setae. Genital sac sclerite as in Figs 14–17. Dimensions: TW, 0.41–0.43; POW, 0.31–0.32; HL, 0.27–0.30; PW, 0.26–0.28; MW, 0.35–0.38; AWIV, 0.46–0.47; GW, 0.10–0.11; GSL, 0.08–0.09; TL, 1.25–1.33. Etymology. The species epithet is a noun in apposition derived from the generic name of the type host. Remarks. This is the first record of Myrsidea from Pyriglena leucoptera. A portion of COI gene was sequenced from specimens of M. pyriglenae from Paraguay (GenBank MF563533). Comparing our sequence with other known sequences of Neotropical Myrsidea, the divergences exceeded 18% in all cases, the closest being that of M. patersoni Price & Johnson, 2009 (ex Eucometis penicillata (Spix, 1825), family Thraupidae, GenBank GQ454448), with a p-distance of 18.2%. Unfortunately, there are no genetic sequences known from M. milleri, the species morphologically closest to M. pyriglenae. However, considering the combination of morphological differences with M. patersoni and M. milleri, and the large sequence divergence with M. patersoni, we are confident that M. pyriglenae is a new, separate species., Published as part of Kolencik, Stanislav, Sychra, Oldrich, Papousek, Ivo, Kuabara, Kamila M. D., Valim, Michel P. & Literak, Ivan, 2018, New species and additional data on the chewing louse genus Myrsidea (Phthiraptera: Menoponidae) from wild Neotropical Passeriformes (Aves), pp. 401-431 in Zootaxa 4418 (5) on pages 418-420, DOI: 10.11646/zootaxa.4418.5.1, http://zenodo.org/record/1244956, {"references":["Price, R. D., Johnson, K. P. & Dalgleish, R. C. (2008 b) Five new species of Myrsidea Waterston (Phthiraptera: Menoponidae) from antshrikes and antbirds (Passeriformes: Thamnophilidae). Zootaxa, 1819, 55 - 62.","Clements, J. F., Schulenberg, T. S., Iliff, M. J., Roberson, D., Fredericks, T. A., Sullivan, B. L. & Wood, C. L. (2017) The eBird / Clements checklist of birds of the world: v 2017. Available from: http: // www. birds. cornell. edu / clementschecklist / download / (accessed 14 June 2017)","Isler, M. L., Bravo, G. A. & Brumfield, R. T. (2013) Taxonomic revision of Myrmeciza (Aves: Passeriformes: Thamnophilidae) into 12 genera based on phylogenetic, morphological, behavioral, and ecological data. Zootaxa, 3717 (4), 469 - 497. https: // doi. org / 10.11646 / zootaxa. 3717.4.3","Price, R. D. & Johnson K. P. (2009) Five new species of Myrsidea Waterston (Phthiraptera: Menoponidae) from tanagers (Passeriformes: Thraupidae) in Panama. Zootaxa, 2200, 61 - 68."]}

Myrsidea pachyramphi, new species (Figs 28, 35, 45–46) Type host. Pachyramphus polychopterus (Vieillot, 1818) —white-winged becard. Type locality. San Rafael National Park, Paraguay (26°30'S, 55°47'W). Type material. Ex Pachyramphus polychopterus: holotype ♀, San Rafael National Park, Paraguay (26°30'S, 55°47'W), 8–15 August 2012, I. Literak (MMBC). Paratypes: 2♀, 3♂ with the same data as holotype (MMBC). Diagnosis. Myrsidea pachyramphi n. sp. is morphologically similar to M. incerta (Kellogg, 1896b) and M. pricei Clay, 1966 from members of the Turdidae, and to M. bessae Price, Johnson & Dalgleish, 2008 and M. alexanderi Kolencik, Sychra, Valan & Literak, 2016 from members of the Troglodytidae. Combining genetic and morphological difference, the closest species is M. incerta. However, females of M. pachyramphi can be distinguished from those of M. incerta by having (1) a larger number of setae on the femoral brush (18–22 vs 13– 17), and (2) larger dimensions, as follows: MW (0.42–0.43 vs 0.37) and AWIV (0.52–0.57 vs 0.50), while males differ by having a greater total number of setae on sternites IV–VII (85–96 vs 53–82). Further, females of M. pachyramphi, differ from those of M. pricei in (1) the shape of the first tergite (more concave in M. pricei); and (2) the number of setae on tergites I–IV (total 28–38 in M. pachyramphi vs. 40–52 in M. pricei). Males can be distinguished by the number of setae on tergites I–V (total 29–33 in M. pachyramphi vs. 39–53 in M. pricei). Females of M. pachyramphi can be easily distinguished from those of M. bessae by the shape of the metanotum and first two tergites. Finally, M. pachyramphi differs from M. alexanderi in the number of setae on tergites I–VII: females with a total of 44–61 setae in M. pachyramphi vs. 74–90 in M. alexanderi; males with a total of 38–43 vs. 63–71. Description. Female (n = 3). As in Figs 28 and 45. Hypopharyngeal sclerites fully developed. Length of dhs 10, 0.045–0.055; dhs 11, 0.090–0.105; ratio dhs 10/11, 0.50–0.52; ls5 0.04–0.05 long, latero-ventral fringe with 10–11 setae. Gula with 4–5 setae on each side. Pronotum with 6 setae on posterior margin and 3 short spiniform setae at each lateral corner. First tibia with 3 outer ventro-lateral and 4 dorso-lateral setae. Metanotum not enlarged, with 8–9 marginal setae; metasternal plate with 6–7 setae; metapleurites with 3–4 short strong spiniform setae. Femur III with 1 8–22 setae in ventral setal brush. Tergites I and II slightly convex. Abdominal segments with welldefined median gap in each row of tergal setae. Tergal setae: I, 6–8; II, 8–11; III, 8–10; IV, 6–9; V, 7–10; VI, 5–8; VII, 4–5; VIII, 4. Postspiracular setae very long on II, IV and VIII (0.45–0.51); long on I and VII (0.30–0.38); and short on III, V and VI (0.12–0.23). Inner posterior seta of last tergum not longer than anal fringe setae with length 0.06–0.08; length of short lateral marginal seta of last segment, 0.03–0.04. Pleural setae: I, 4–5; II, 6–8; III, 7–8; IV, 6–7; V, 5–6; VI–VII, 4–5; VIII, 3. Pleurite VIII with inner setae (0.07–0.09) twice as long as outer (0.04–0.05). Anterior margin of sternal plate II with a medial notch. Sternal setae: I, 0; II, 3–4 in each aster: s1, 0.05–0.06; s2, 0.04–0.05; s3, 0.03–0.04; s4, 0.02–0.03; with 13–16 marginal setae between asters, 3–4 medioanterior; III, 21–24; IV, 32; V, 33–35; VI, 27–30; VII, 10–11; VIII–IX, 8–10; and 10–12 setae on deeply serrated vulvar margin. Anal fringe formed by 40 dorsal and 35 ventral setae. Dimensions: TW, 0.45–0.46; POW, 0.35–0.36; HL, 0.31–0.32; PW, 0.27–0.28; MW, 0.42–0.43; AWIV, 0.52–0.57; ANW, 0.21–0.23; TL, 1.43–1.45. Male (n = 3). As in Fig. 46. Similar to female exept as follows: length of dhs 10, 0.045–0.050; dhs 11, 0.093– 0.100; ratio dhs 10/11, 0.48–0.50; ls5 0.05 long, latero-ventral fringe with 10–11 setae. Gula with 5 setae on each side. Pronotum with 6 setae on posterior margin and 3 short spiniform setae at each lateral corner. First tibia with 3 outer ventro-lateral and 4 dorso-lateral setae. Metanotum not enlarged with 6–7 marginal setae; metasternal plate with 6–7 setae; metapleurites with 3 short spiniform strong setae. Femur III with 13–17 setae in ventral setal brush. Abdominal segments with well-defined median gap in each row of tergal setae. Tergal setae: I, 4; II, 6–7; III, 6–8; IV, 7; V, 6–7; VI, 5–6; VII–VIII, 4; Postspiracular setae with the same pattern as in female but shorter. Length of inner posterior seta of last tergum, 0.03–0.05; short lateral marginal seta of last segment, 0.02. Pleural setae: I, 3–4; II, 4–5; III–IV, 5–6; V, 4–6; VI, 4–5; VII, 3–4; VIII, 2–3. Pleurite VIII with inner setae (0.06–0.07) as long as outer (0.02–0.03). Anterior margin of sternal plate II with a medial notch. Sternal setae: I, 0; II, 3–4 in each aster: s1, 0.05–0.06; s2, 0.03–0.04; s3, 0.03; s4, 0.02–0.03; with 8–10 marginal setae between asters, 2–4 medioanterior; III, 15–17; IV, 23–28; V, 27–29; VI, 22–25; VII, 13–14; VIII, 4; remainder of plate, 6–7; and with 3 setae posteriorly; with 8 internal anal setae. Genital sac sclerite as in Fig. 35. Dimensions: TW, 0.41–0.43; POW, 0.32–0.33; HL, 0.28–0.30; PW, 0.25–0.26; MW, 0.35–0.36; AWIV, 0.42–0.44; GW, 0.10–0.11; GSL, 0.08; TL, 1.23–1.28. Etymology. The species epithet is a noun in apposition derived from the generic name of the type host. Remarks. This is the first record of chewing lice from Pachyramphus polychopterus. A portion of COI gene was sequenced from two specimens of M. pachyramphi from Paraguay (GenBank MF563534 – MF563535). Comparing our sequence with all known Myrsidea sequences, the closest were: (1) those of M. incerta (ex Catharus ustulatus (Nuttall, 1840), GenBank FJ 171268 – FJ 171269, and Catharus minimus (Lafresnaye, 1848), GenBank FJ 171270, family Turdidae), with p-distances of 11.9–12.9%, (2) those of M. alexanderi (ex Pheugopedius maculipectus Lafresnaye, 1845, GenBank MF563536), and M. bessae (ex Pheugopedius fasciatoventris Lafresnaye, 1845, GenBank EU289214, and Cantorchilus semibadius Salvin, 1870, GenBank EU289213 family Troglodytidae), with p-distances of 12.7–13.7%, and (3) that of M. pricei (ex Catharus guttatus (Pallas, 1811), GenBank FJ 171273), with a p-distance of 13.7%. These divergences are close to the limit of accepted interspecific variation but, together with their morphological differences, we are confident that M. pachyramphi is a distinct species. Further molecular data are needed to clarify the phylogenetic relationships of these species within the species-complex and confirm their valid status as species or subspecies., Published as part of Kolencik, Stanislav, Sychra, Oldrich, Papousek, Ivo, Kuabara, Kamila M. D., Valim, Michel P. & Literak, Ivan, 2018, New species and additional data on the chewing louse genus Myrsidea (Phthiraptera: Menoponidae) from wild Neotropical Passeriformes (Aves), pp. 401-431 in Zootaxa 4418 (5) on pages 420-422, DOI: 10.11646/zootaxa.4418.5.1, http://zenodo.org/record/1244956, {"references":["Kellogg, V. L. (1896 b) New Mallophaga. II. - from land birds; together with an account of the mallophagous mouth-parts. Proceedings of the California Academy of Sciences, Series 2, 6, 431 - 548, pls. 60 - 73.","Clay, T. (1966) Contributions towards a revision of Myrsidea Waterston. I. (Menoponidae: Mallophaga). Bulletin of the British Museum (Natural History) Entomology, 17 (8), 327 - 395, 2 pls.","Kolencik, S., Sychra, O., Valan, M. & Literak, I. (2016) New data on the taxonomy and distribution of ten Neotropical chewing lice of the genus Myrsidea (Phthiraptera: Menoponidae), including the description of a new species. Zootaxa, 4085 (2), 233 - 247. https: // doi. org / 10.11646 / zootaxa. 4085.2.4"]}

Myrsidea philydori, new species (Figs 3, 8–10, 20–21) Type host. Philydor rufum (Vieillot, 1818) —buff-fronted foliage-gleaner. Type locality. San Rafael National Park, Paraguay (26°30'S, 55°47'W). Type material. Ex Philydor rufum: holotype ♀, San Rafael National Park, Paraguay (26°30'S, 55°47'W), 19 August 2012, I. Literak (MMBC). Paratypes: 2♀, 3♂, with the same data as holotype. Other material, non-type. Ex Anabacerthia lichtensteini (Cabanis & Heine, 1859) —ochre-breasted foliagegleaner: 1♂, San Rafael National Park, Paraguay (26°30'S, 55°47'W), 20 August 2012, I. Literak (MMBC). Diagnosis. Myrsidea philydori n. sp. shares the same type of male genital sac sclerite as other Myrsidea from members of the Furnariidae. According to the shape of female tergites, M. philydori is close to M. waterstoni Valim, Price & Johnson, 2011 from Anabacerthia variegaticeps (P.L. Sclater, 1857) from Panamá. Female of M. philydori can be easily distinguished from those of M. waterstoni by the absence of a detached plate on tergite III and a larger number of setae on tergites IV–VI (12–14 vs 7–10 respectively). Males of M. philydori and of M. waterstoni are very similar in setal counts, but they can be separated by smaller dimensions in all measurements, especially TW (0.42–0.44 vs 0.47) and PW (0.26–0.28 vs 0.31). Comparing M. philydori with other Neotropical Myrsidea, the new species has modified tergites similar to those of M. rekasii Dalgleish & Price, 2003 and M. baileyae Dalgleish & Price, 2003, both described from the Pipridae. However, males of these latter species have completely different type of genital sac sclerite. Females of M. philydori differ from those of M. rekasii by smaller numbers of setae on tergites I–III (9–10 vs 12–14 on I; 6–8 vs 11–18 on II; 10–11 vs 13–16 on III) and from those of M. baileyae by smaller number of setae on tergite VIII (4 vs 8–9), as well as by smaller dimensions, especially TW (0.47–0.48 vs 0.54–0.55). Description. Female (n = 3). As in Figs 3 and 20. Hypopharyngeal sclerites fully developed. Length of dhs 10, 0.051–0.055; dhs 11, 0.098–0.111; ratio dhs 10/11, 0.46–0.55; ls5 0.04 long, latero-ventral fringe with 10–11 setae. Gula with 4 setae on each side. Pronotum with 6 setae on posterior margin and 3 short spiniform setae at each lateral corner. First tibia with 3 outer ventro-lateral and 4–5 dorso-lateral setae. Metanotum not enlarged, with 8–11 marginal setae; metasternal plate with 4 setae; metapleurites with 4 short strong spiniform setae. Femur III with 13–15 setae in ventral setal brush. Tergites modified as follows: I–II strongly convex, III–IV are depressed by I–II (Fig. 3). Abdominal segments with well-defined median gap in each row of tergal setae. Tergal setae: I, 9–10; II, 6– 8; III, 10–11; IV, 12–13; V, 12–14; VI, 12–14; VII, 7–8; VIII, 4; Postspiracular setae very long on II, IV, VII and VIII (0.35–0.46); long on I and III (0.23–0.32); and short on V and VI (0.13–0.20). Inner posterior seta of last tergum not longer than anal fringe setae with length 0.03–0.06; length of short lateral marginal seta of last segment, 0.03–0.06. Pleural setae: I, 6–7; II, 7–8; III, 7–8; IV, 6–7; V, 5–6; VI, 5–6; VII, 3–4; VIII, 3. Pleurites without slender and longer setae. Pleurite VIII with inner setae (0.02–0.04) as long as outer (0.02–0.04). Anterior margin of sternal plate II with a medial notch. Sternal setae: I, 0; II, 5 in each aster: s1, 0.10–0.12; s2, 0.09–0.10; s3, 0.07– 0.08; s4, 0.05–0.06; s5, 0.04–0.05; with 13–14 marginal setae between asters, 6 medioanterior; III, 20–23; IV, 29– 34; V, 31–37; VI, 25–28; VII, 12–15; VIII–IX, 11–12; and 11–13 setae on deeply serrated vulvar margin; sternites III–VII without medioanterior setae. Anal fringe formed by 38–40 dorsal and 33–43 ventral setae. Dimensions: TW, 0.47–0.48; POW, 0.36–0.37; HL, 0.32–0.33; PW, 0.29; MW, 0.46–0.48; AWIV, 0.60; ANW, 0.20–0.25; TL, 1.47–1.55. Male (n = 4). As in Fig. 21. Similar to female except as follows: length of dhs 10, 0.048–0.054; dhs 11, 0.092– 0.100; ratio dhs 10/11, 0.48–0.59; ls5 0.03 long, latero-ventral fringe with 10–11 setae. Gula with 3–4 setae on each side. Metanotum not enlarged with 4–7 marginal setae; metasternal plate with 4 (6 in specimen from A. lichtensteini) setae; metapleurites with 3–4 short spiniform strong setae. Femur III with 10–14 setae in ventral setal brush. Abdominal segments with well-defined median gap in each row of tergal setae. Tergal setae: I, 7–9; II, 8–11; III–IV, 9–11; V, 11–12; VI, 9–11; VII, 4–6; VIII, 4; Postspiracular setae with the same pattern as in female but shorter. Length of inner posterior seta of last tergum, 0.05; short lateral marginal seta of last segment, 0.02. Pleural setae: I, 5–6; II, 6–7; III, 6–7; IV, 6; V, 5; VI, 4–5; VII, 3; VIII, 3. Pleurite VIII with inner setae (0.03–0.04) as long as outer (0.02–0.03). Anterior margin of sternal plate II with a medial notch. Sternal setae: I, 0; II, 4–5 in each aster: s1, 0.09–0.12; s2, 0.07–0.10; s3, 0.06–0.07; s4, 0.04–0.05; s5, 0.02–0.04; with 12–14 marginal setae between asters, 4–6 medioanterior; III, 16–23; IV, 24–28; V, 22–33; VI, 20–26; VII, 10–14; VIII, 4; remainder of plate, 8– 10; and with 3–4 setae posteriorly; sternites III–VII without medioanterior setae. With 8 internal anal setae. Genital sac sclerite as in Figs 8–10. Dimensions: TW, 0.42–0.44; POW, 0.33–0.35; HL, 0.31; PW, 0.26–0.28; MW, 0.37– 0.39; AWIV, 0.47–0.48; GW, 0.11–0.12; GSL, 0.08; TL, 1.23–1.33. Etymology. The species epithet is a noun in apposition derived from the generic name of the type host. Remarks. These are first records of chewing lice from both Philydor rufum and Anabacerthia lichtensteini. A portion of COI gene was sequenced from one specimen of M. philydori from Anabacerthia lichtensteini from Paraguay (GenBank MF563530). Comparing our sequence with other known sequences of Neotropical Myrsidea, divergences exceeded 19% in all cases, including that with M. waterstoni (ex Anabacerthia variegaticeps, family Furnariidae, GenBank FJ 171278) being 19.3%. Curiously, comparing our sequence of M. philydori with all known Myrsidea sequences, the closest was that of M. textoris Klockenhoff, 1984 (ex Ploceus intermedius Rüppell, 1845 and Ploceus velatus Vieillot, 1819, family Ploceidae, GenBank KF768813 and KF768815) from South Africa, with a p-distance of about 17.5%. Furthermore, sequences of a portion of EF-1alpha gene of M. philydori from Philydor rufum and from Anabacerthia lichtensteini (GenBank MF574203 – MF574204) were identical to each other, and diverged from that of M. waterstoni (GenBank FJ171305) by 3.4%. All these sequence divergences are large enough to confirm M. philydori as a new, separate species.

Myrsidea scleruri, new species (Figs 4, 11, 22–23) Myrsidea sp. 1; Kuabara & Valim, 2017: 150. Type host. Sclerurus scansor (Menetries, 1835) —rufous-breasted leaftosser. Type locality. Ilha Grande, Rio de Janeiro, Brazil (23°09'S, 44°14'W). Type material. Ex Sclerurus scansor: holotype ♀ (MZUSP#6745), Ilha Grande, Rio de Janeiro, Brazil, 21 September 1944, H. Sick. Paratypes: 2♂, 1♀, (MZUSP#6743–44, 6746) with the same data as holotype (MZUSP). Other material, non-type. 1♂ San Rafael National Park, Paraguay (26°30'S, 55°47'W), 19 August 2012, I. Literak (MMBC). Diagnosis. Myrsidea scleruri n. sp. has the same type of male genital sac sclerite as other species of Myrsidea from the Furnariidae. However, it can be easily distinguished from all Neotropical Myrsidea by a unique combination of characters: (1) pronotum with 8 setae on posterior margin, (2) pleurites III–VII with 2–4 slender and quite long setae, (3) the shape of the male genital sac sclerite (Fig. 11), and (4) shape of female tergites (Fig. 4). Myrsidea calvi Sychra et al., 2007 —described from Sclerurus guatemalensis (Hartlaub, 1844) in Costa Ricais morphologically close to M. scleruri but both species can be easily separated by: (1) number of setae on the posterior margin of pronotum (6 setae vs 8 setae in M. scleruri), (2) shape of tergites I and II, and (3) female total length (1.52–1.60 vs 1.86–1.92). There are five species of Neotropical Myrsidea with 8 setae on the posterior margin of pronotum, as follows: M. aitkeni Clay, 1966, M. antiqua Ansari, 1956, M. carrikeri (Eichler, 1943), M. elegans Ansari, 1956 and M. obsoleti Kounek & Sychra [in Kounek et al.], 2013. All these species were described from members of the Turdidae and are placed in the carrikeri species group (sensu Clay 1966). Myrsidea scleruri is easily distinguished from all these species by a completely different male genital sac sclerite and different modification of tergites in the female. Description. Female (n = 2). As in Figs 4 and 22. Hypopharyngeal sclerites fully developed. Length of dhs 10, 0.090; dhs 11, 0.116; ratio dhs 10/11, 0.78; ls5 broken, latero-ventral fringe with 10 setae. Gula with 4 setae on each side. Pronotum with 8 setae on posterior margin and 3 medium length spiniform setae at each lateral corner. First tibia with 3 outer ventro-lateral and 4 dorso-lateral setae. Metanotum enlarged, with 4 marginal setae; metasternal plate with 7–9 setae; metapleurites with 3–4 short strong spiniform setae. Femur III with 18–22 setae in ventral setal brush. Tergite I narrow with medium posterior enlargement; tergite II three times larger than I, with anterior margin medially concave due to enlargement of tergite I. Tergites III-IV slightly concave posteriorly as result of enlargement of first tergites. Abdominal segments II–VIII with well-defined median gap in each row of tergal setae (Fig. 4). Tergal setae: I, 17–20; II, 22–24; III, 22–23; IV, 2 2–26; V, 26; VI, 18–20; VII, 12; VIII, 2–4. Postspiracular setae very long on II, IV, VII and VIII (0.41–0.52); and shorter on I, III, V and VI (0.19–0.30). Inner posterior seta of last tergum with length 0.01; length of short lateral marginal seta of last segment, 0.03–0.04. Pleural setae: I, 8–9; II, 8–12; III, 8–10; IV, 6–11; V, 6–8; VI, 6–7; VII, 5–6; VIII, 3–4. Pleurites III–VII with 2–4 slender and longer setae. Pleurite VIII with length of inner setae 0.04–0.06 and outer 0.06–0.07. Anterior margin of sternal plate II with a small medial notch. Sternal setae: I, 0 (female paratype with 1 seta); II, 5 in each aster: s1, 0.11–0.13; s2, 0.08–0.11; s3, 0.05–0.07; s4, 0.03–0.04; s5, 0.02–0.03; with 14–16 marginal setae between asters, 4–5 medioanterior setae; III, 40–46; IV, 44–48; V, 47–54; VI, 45–46; VII, 20–25; VIII–IX, 16–17; and 15–17 setae on scantly serrated vulvar margin, without medioanterior setae on sternites III–VII. Anal fringe formed by 42–45 dorsal and 41–42 ventral setae. Dimensions: TW, 0.50; POW, 0.35; HL, 0.35–0.41; PW, 0.35; MW, 0.55–0.60; AWIV, 0.76–0.88; ANW, 0.27–0.28; TL, 1.86–1.92. Male (n = 3). As in Fig. 23. Similar to female except as follows: length of dhs 10, 0.070–0.098; dhs 11, 0.110– 0.112; ratio dhs 10/11, 0.64–0.89. Latero-ventral fringe with 10 setae (one specimen with 11 on one side). Gula with 4–5 setae on each side. Pronotum with 8 setae on posterior margin and 3 short spiniform setae at each lateral corner. First tibia with 3 outer ventro-lateral and 4–5 dorso-lateral setae. Metanotum with posterior margin roughly straight with 4 marginal setae; metasternal plate with 7–10 setae; metapleurites with 3–5 short spiniform strong setae. Femur III with 15–21 setae in ventral setal brush. Abdominal tergites with continuous row of setae on tergites I–V and with short median gap in the row of setae only on tergites VI–VIII. Tergal setae: I, 12–14; II, 18– 21; III, 16–25; IV, 16–23; V, 18–21; VI, 15–22; VII, 12–19; VIII, 7–8. Postspiracular setae same with the same pattern as in female but shorter. Length of inner posterior seta of last tergum, 0.01–0.02; short lateral marginal seta of last segment, 0.01–0.02. Pleural setae: I, 5–7; II, 7–12; III, 7–13; IV, 6–12; V, 6–11; VI, 6–10; VII, 5–9; VIII, 3– 5. Pleurites III–VII with 2–4 slender and longer setae: Pleurite VIII with inner setae (0.02) smaller as the outer one (0.03–0.05). Anterior margin of sternal plate II with a medial notch. Sternal setae: I, 0; II, 4–5 in each aster: s1, 0.08–0.10; s2, 0.07–0.10; s3, 0.05–0.07; s4, 0.03–0.04; s5, 0.02–0.03; with 15–17 marginal setae between asters, 7–14 medioanterior; III, 34–37; IV, 45–49; V, 48–52; VI, 47–51; VII, 28–31; VIII, 9–11; remainder of plate, 14–17; sternites VI–VIII with 0–2 medioanterior setae. Genital sac sclerite as in Fig. 11. Dimensions: TW, 0.43–0.49; POW, 0.31–0.33; HL and PW, 0.31–0.33; MW, 0.41–0.46; AWIV, 0.55–0.58; GW, 0.12–0.14; GSL, 0.10; TL, 1.45–1.54. Etymology. The species epithet is a noun in apposition derived from the generic name of the type host.

Myrsidea zuzanae, new species (Figs 5, 12–13, 24–25) Type host. Furnarius rufus (J.F. Gmelin, 1788) —rufous hornero. Type locality. Los Tres Gigantes Biological Station in the Paraguayan Pantanal, Paraguay (20°04'S, 50°09'W). Type material. Ex Furnarius rufus: holotype ♀, Los Tres Gigantes Biological Station in the Paraguayan Pantanal, Paraguay (20°04'S, 50°09'W), 6–7 August 2012, I. Literak (MMBC). Paratypes: 1♀, 2♂ with the same data as holotype (MMBC). Diagnosis. Myrsidea zuzanae n. sp. shares the same type of male genital sac sclerite as other Myrsidea from the Furnariidae, but it can be easily distinguished from them by its unique modification of female tergites, especially II being the only tergite with a prominent medioposterior convexity (Fig. 5). However, among species of Neotropical Myrsidea from other bird families, M. zuzanae has a similar modification of female tergites as that of M. rufi Price & Dalgleish, 2006 and M. phoenicii Price & Dalgleish, 2006 from the Thraupidae. However, males of these two species have a completely different type of genital sac sclerite. In addition, females of M. zuzanae differ from those of M. rufi by (1) fewer setae on tergite VIII (4–5 in M. zuzanae vs 6–8 in M. rufi), and (2) more setae on sternites III–V (total 11 7–124 in M. zuzanae vs 85–97 in M. rufi). Also, it differs from females of M. phoenicii by (1) more setae on tergite I (14–19 in M. zuzanae vs 10–12 in M. phoenicii), (2) more setae on sternites III–V (total 117–124 in M. zuzanae vs 72–95 in M. phoenicii), and (3) fewer setae on tergite VIII (4–5 in M. zuzanae vs 6–8 in M. phoenicii). Description. Female (n = 2). As in Figs 5 and 24. Hypopharyngeal sclerites fully developed. Length of dhs 10, 0.060–0.065; dhs 11, 0.102–0.105; ratio dhs 10/11, 0.36–0.57; ls5 0.06 long, latero-ventral fringe with 10–11 setae. Gula with 4 setae on each side. Pronotum with 6 setae on posterior margin and 3 short spiniform setae at each lateral corner. First tibia with 3 outer ventro-lateral and 4 dorso-lateral setae. Metanotum not enlarged, with 11–12 marginal setae; metasternal plate with 6 setae; metapleurites with 3–4 short strong spiniform setae. Femur III with 19–21 setae in ventral setal brush. Tergites modified as follows: tergite II with prominent medioposterior convexity and tergite III with widely rounded posterior margin (Fig. 5). Abdominal segments with well-defined median gap in row of tergal setae II–VIII. Tergal setae: I, 14–19; II, 12–13; III, 10; IV, 10; V, 12–13; VI, 12; VII, 12; VIII, 4–5. Postspiracular setae very long on I, II, IV, VII and VIII (0.31–0.46); and short on III, V–VI (0.16–0.27). Inner posterior seta of last tergum not longer than anal fringe setae with length 0.03; length of short lateral marginal seta of last segment, 0.04. Pleural setae: I, 6–7; II, 7–9; III, 8–9; IV, 6–9; V, 6–7; VI, 5–6; VII, 4–5; VIII, 3. Pleurites with only short spine-like setae. Pleurite VIII with inner setae (0.04) as long as outer (0.04–0.05). Anterior margin of sternal plate II with a medial notch. Sternal setae: I, 0; II, 4 in each aster: s1, 0.09–0.10; s2, 0.05–0.06; s3, 0.05; s4, 0.03; with 13–14 marginal setae between asters, 2–5 medioanterior; III, 30–33; IV, 43–47; V, 44; VI, 27–29; VII, 15; VIII–IX, 9; and 11–13 setae on deeply serrated vulvar margin; without medioanterior setae on sternites. Anal fringe formed by 40 dorsal and 36 ventral setae. Dimensions: TW, 0.45–0.46; POW, 0.35–0.36; HL, 0.30– 0.32; PW, 0.29; MW, 0.45–0.46; AWIV, 0.63–0.65; ANW, 0.23; TL, 1.52–1.58. Male (n = 2). As in Fig. 25. As for female, except as follows: length of dhs 10, 0.060; dhs 11, 0.95–0.98; ratio dhs 10/11, 0.61–0.63; ls5 0.04–0.06 long, latero-ventral fringe with 10–11 setae. Gula with 2–4 setae on each side. Metanotum not enlarged with 8–9 marginal setae; metasternal plate with 6 setae; metapleurites with 3–4 short spiniform strong setae. Femur III with 14–17 setae in ventral setal brush. Abdominal segments with well-defined median gap in each row of tergal setae. Tergal setae: I, 6–7; II, 8–11; III, 7–8; IV–V, 8; VI–VII, 7–8; VIII, 4. Postspiracular setae very long on II, IV, VII and VIII (0.42–0.45); long on I (0.29); and short on III, V and VI (0.13–0.23). Length of inner posterior seta of last tergum, 0.045–0.070; short lateral marginal seta of last segment, 0.020–0.025. Pleural setae: I, 4–5; II, 6–7; III, 5–6; IV, 5–6; V, 5–6; VI, 4; VII, 2–4; VIII, 3. Pleurite VIII with inner setae (0.03–0.04) as long as outer (0.03–0.04). Anterior margin of sternal plate II with a medial notch. Sternal setae: I, 0; II, 4 in each aster: s1, 0.07–0.11; s2, 0.05–0.06; s3, 0.04–0.05; s4, 0.03–0.04; with 12–14 marginal setae between asters, 4 medioanterior; III, 20–21; IV, 28–33; V, 33; VI, 26; VII, 15; VIII, 5–7; remainder of plate, 7–8; and with 3 setae posteriorly; without medioanterior setae on sternites. With 8 internal anal setae. Genital sac sclerite as in Figs 12–13. Dimensions: TW, 0.42; POW, 0.32–0.33; HL, 0.28–0.29; PW, 0.26–0.27; MW, 0.37–0.38; AWIV, 0.48–0.53; GW, 0.10–0.11; GSL, 0.08; TL, 1.28–1.36. Etymology. This species is named in honour of Zuzana Kokeš, the sister of the first author, in recognition of her great support during his life. Remarks. This is the first record of Myrsidea from Furnarius rufus. A portion of COI gene was sequenced from specimens of M. zuzanae from Paraguay (GenBank MF563531). Comparing our sequence with other known sequences of Neotropical Myrsidea, the divergences exceeded 19% in all cases. However, comparing our sequence of M. zuzanae with all known Myrsidea, the closest was that of M. marksi Johnson & Price, 2006 (ex Phyllastrephus albigularis (Sharpe, 1882), family Pycnonotidae, from the Democratic Republic of the Congo, GenBank KU187279 – KU187280), with a p-distance of 17.9%. These sequence divergences are large enough to confirm M. zuzanae as a new, separate species.

Myrsidea flaviventris Price, Hellenthal & Dalgleish, 2005 Myrsidea flaviventris Price, Hellenthal & Dalgleish, 2005: 8. Type host. Tolmomyias flaviventris (Wied, 1831) —yellow-breasted flycatcher. Type locality. Melajo Forest, Sangre Grande, Trinidad & Tobago. Material examined. Ex Tolmomyias sulphurescens (Spix, 1825) —yellow-olive flycatcher: 1♀, Atlántida, Tela, Lancetilla Botanical Garden, Honduras (15°44'N, 87°27'W), 10 August 2014, I. Literak (MMBC). Remarks. This is the first record of Myrsidea from Tolmomyias sulphurescens. Until now, Myrsidea flaviventris was known from Trinidad & Tobago and Perú (Price et al. 2005), and this is the first record from Honduras. Our specimen differs from the original description of M. flaviventris by setal counts and dimensions, as follows [data from Price et al. (2005) are in parentheses]: Female (n = 1). Tergal setae: II, 15 (9–11); V, 12 (10–11). Sternal setae: II, in total 17 (24–25) medioanterior and marginal setae; III, 27 (23–25); IV, 36 (31–35); VI, 34 (35–37). Anal fringe with 32 (35–42) dorsal setae. Dimensions: TW, 0.47 (0.46); MW, 0.44 (0.41–0.42); ANW, 0.22 (0.20–0.21).

Myrsidea capeki, new species (Figs 26, 30–34, 41–42) Type host. Chiroxiphia caudata (Shaw, 1793) —swallow-tailed manakin. Type locality. San Rafael National Park, Paraguay (26°30'S, 55°47'W). Type material. Ex Chiroxiphia caudata: holotype ♀, San Rafael National Park, Paraguay (26°30'S, 55°47'W), 18–23 August 2012, I. Literak (MMBC). Paratypes: 6♀, 7♂ with the same data as holotype (MMBC). Diagnosis. Myrsidea capeki n. sp. can be easily distinguished from other Myrsidea from the Pipridae and from other Neotropical species by the shape of female tergites (Fig. 26): (1) tergite I slightly enlarged with widely rounded posterior margin, (2) tergites II–III with convex posterior margin, (3) tergite I with continuous row of long setae reaching beyond the posterior margin of tergite III, and (4) tergites II–VIII with well-defined median gap in each row of tergal setae. Males of M. capeki have a variable and widespread type of male genital sac sclerite (Figs 30–34), also found in other Myrsidea from members of the Pipridae, and in other Neotropical Myrsidea from the Cardinalidae, Emberizidae and Thraupidae. Comparing genetic sequences between M. capeki and other known sequences of Neotropical Myrsidea (see Remarks below), the closest species was M. pagei Price & Johnson, 2009 from the Thraupidae. However, males of M. capeki differ from those of M. pagei by (1) the number of setae on tergite I (12– 18 in M capeki vs 7–10 in M. pagei), and (2) a shorter total length (1.17–1.25 in M. capeki vs 1.26–1.30 in M. pagei). Description. Female (n = 7). As in Figs 26 and 41. Hypopharyngeal sclerites fully developed. Length of dhs 10, 0.040–0.045; dhs 11, 0.088–0.105; ratio dhs 10/11, 0.36–0.51; ls5 0.05–0.06 long, latero-ventral fringe with 9– 10 setae. Gula with 4–5 setae on each side. Pronotum with 6 setae on posterior margin and 3 short spiniform setae at each lateral corner. First tibia with 3 outer ventro-lateral and 3–4 dorso-lateral setae. Metanotum not enlarged, with 6–8 marginal setae metasternal plate with 5–8 setae; metapleurites with 2–4 short strong spiniform setae. Femur III with 12–16 setae in ventral setal brush. Tergite I slightly enlarged with widely rounded posterior margin and continuous row of long setae reaching beyond the posterior margin of tergite III. Tergites II–III with convex posterior margin. Tergites II–VIII with well-defined median gap in each row of tergal setae (Fig. 26). Tergal setae: I, 19–22; II, 13–15; III, 12–17; IV, 13–16; V, 1 2–16; VI, 11–17; VII, 9–13; VIII, 8–11; Postspiracular setae very long on II, IV and VIII (0.39–0.45); long on I and VII (0.25–0.30); and short on III, V and VI (0.14–0.21). Inner posterior seta of last tergum longer than anal fringe setae with length 0.07–0.14; length of short lateral marginal seta of last segment, 0.03–0.06. Pleural setae: I–II, 6–8; III, 7–9; IV, 6–8; V, 5–7; VI, 5–6; VII, 4–6; VIII, 3–4. Pleurites V–VII with 0–3 slender and longer setae. Pleurite VIII with inner setae (0.05–0.13) as long as outer (0.05–0.09). Anterior margin of sternal plate II with a medial notch. Sternites V–VI narrow and arched. Sternal setae: I, 0; II, 5–6 (in one specimen one aster with 4) in each aster: s1, 0.06–0.08; s2, 0.06–0.07; s3, 0.05–0.08; s4, 0.03–0.06; s5, 0.03–0.05; s6, 0.03; with 12–16 marginal setae between asters, 4–6 medioanterior; III, 21–24; IV, 25–29; V, 28–34; VI, 28–31; VII, 15–20; VIII–IX, 10–12; and 8–12 setae on slightly serrated vulvar margin. Anal fringe formed by 29–39 dorsal and 29–32 ventral setae. Dimensions: TW, 0.44–0.46; POW, 0.34–0.37; HL, 0.28– 0.30; PW, 0.27–0.29; MW, 0.42–0.44; AWIV, 0.55–0.60; ANW, 0.20–0.22; TL, 1.33–1.40. Male (n = 7). As in Fig. 42. Similar to female except as follows: length of dhs 10, 0.037–0.045; dhs 11, 0.078– 0.100; ratio dhs 10/11, 0.37–0.52; ls5 0.04–0.06 long, latero-ventral fringe with 9–10 setae. Gula with 4–6 setae on each side. First tibia with 3 outer ventro-lateral and 3–5 dorso-lateral setae. Metanotum not enlarged with 4–8 marginal setae; metasternal plate with 6–8 setae; metapleurites with 2–3 short spiniform strong setae. Femur III with 10–13 setae in ventral setal brush. Abdominal segments with well-defined median gap in each row of tergal setae. Tergal setae: I, 12–18; II, 10–13; III, 12–14; IV, 11–14; V, 11–13; VI, 10–13; VII, 9–12; VIII, 6–10; Postspiracular setae same with the same pattern as in female but shorter. Length of inner posterior seta of last tergum, 0.06–0.11; short lateral marginal seta of last segment, 0.02. Pleural setae: I–III, 5–7; IV, 6–7; V, 5–6; VI, 4– 6; VII, 4–5; VIII, 3. Pleurites IV–VII with 1–3 slender and longer setae. Pleurite VIII with inner setae (0.08–0.10) almost three times as long as outer (0.03–0.04). Anterior margin of sternal plate II without a medial notch. Sternal setae: I, 0; II, 4–5 in each aster: s1, 0.06–0.08; s2, 0.05–0.07; s3–s4, 0.05–0.06; s5, 0.03–0.04; with 13–16 marginal setae between asters, 4–6 medioanterior; III, 18–23; IV, 21–24; V, 23–30; VI, 23–28; VII, 14–19; VIII, 4–8; remainder of plate, 5–8; and with 3 setae posteriorly; with 8 internal anal setae. Genital sac sclerite as in Figs 30– 34. Dimensions: TW, 0.41–0.44; POW, 0.32–0.33; HL, 0.27–0.29; PW, 0.25–0.27; MW, 0.36–0.41; AWIV, 0.46– 0.48; GW, 0.11; GSL, 0.08–0.09; TL, 1.17–1.25. Etymology. This species is named in honour of our colleague and friend Miroslav Čapek (Institute of Vertebrate Biology, Academy of Sciences of the Czech Republic), a respected Czech ornithologist who participated in many of our fieldtrips, in recognition of his friendship and unmatched enthusiasm in the study of birds. Remarks. This is the first record of chewing lice from Chiroxiphia caudata. A portion of COI gene was sequenced from specimens of M. capeki from Paraguay (GenBank MF563532). Comparing our sequence with other known sequences of Neotropical Myrsidea, the divergences exceeded 18% in all cases. The closest was that of M. pagei (ex Ramphocelus dimidiatus Lafresnaye, 1837, family Thraupidae, GenBank FJ 171287), with a pdistance of 18.2%. These sequence divergences are large enough to confirm M. capeki as a new, separate species., Published as part of Kolencik, Stanislav, Sychra, Oldrich, Papousek, Ivo, Kuabara, Kamila M. D., Valim, Michel P. & Literak, Ivan, 2018, New species and additional data on the chewing louse genus Myrsidea (Phthiraptera: Menoponidae) from wild Neotropical Passeriformes (Aves), pp. 401-431 in Zootaxa 4418 (5) on pages 417-418, DOI: 10.11646/zootaxa.4418.5.1, http://zenodo.org/record/1244956, {"references":["Price, R. D. & Johnson K. P. (2009) Five new species of Myrsidea Waterston (Phthiraptera: Menoponidae) from tanagers (Passeriformes: Thraupidae) in Panama. Zootaxa, 2200, 61 - 68."]}

Myrsidea klimesi Sychra, 2006 Myrsidea klimesi Sychra, 2006 in Sychra et al. 2006: 55, figs 10–11, 14–15. Type host. Formicarius analis (d´Orbigny & Lafresnaye, 1837)—black-faced ant-thrush. Type locality. Hitoy Cerere BR, Provincia Limón, Costa Rica. Material examined. Ex Formicarius analis: 7 nymphs II, Zona Protectora Las Tablas, Costa Rica (08°54'N, 82°47'W), 21 August 2010, O. Sychra & I. Literak (MMBC). Remarks. Although we examined only nymphs, we believe they belong to M. klimesi because they are from the type host species, even if from a different locality in Costa Rica., Published as part of Kolencik, Stanislav, Sychra, Oldrich, Papousek, Ivo, Kuabara, Kamila M. D., Valim, Michel P. & Literak, Ivan, 2018, New species and additional data on the chewing louse genus Myrsidea (Phthiraptera: Menoponidae) from wild Neotropical Passeriformes (Aves), pp. 401-431 in Zootaxa 4418 (5) on page 407, DOI: 10.11646/zootaxa.4418.5.1, http://zenodo.org/record/1244956, {"references":["Sychra, O., Literak, I., Capek, M. & Havlicek, M. (2006) Chewing lice (Phthiraptera) from typical antbirds and ground antbirds (Passeriformes: Thamnophilidae, Formicariidae) from Costa Rica, with descriptions of three new species of the genera Formicaphagus and Myrsidea. Zootaxa, 1206, 47 - 61."]}

Myrsidea leucophthalmi, new species (Figs 2, 6–7, 18–19) Type host. Automolus leucophthalmus (Wied, 1821)—white-eyed foliage-gleaner. Type locality. San Rafael National Park, Paraguay (26°30'S, 55°47'W). Type material. Ex Automolus leucophthalmus: holotype ♀, San Rafael National Park, Paraguay (26°30'S, 55°47'W), 18 and 20 August 2012, I. Literak (MMBC). Paratypes: 2♀, 3♂ with the same data as holotype (MMBC). Diagnosis. Myrsidea leucophthalmi n. sp. is morphologically close to M. ochrolaemi Sychra [in Sychra et al.], 2007 in the following characters: (1) male genital sac sclerite, (2) female metanotum slightly enlarged with rounded posterior margin and (3) shape of abdominal tergites of female. However, M. leucophthalmi is easily distinguished from M. ochrolaemi by (1) fewer setae on: female tergite I (19–21 vs 22–33), female tergites II–IV (14–17 vs 18–33); male tergite IV (12–14 vs 15–20) and tergite V (12–13 vs 14–17); (2) presence of continuous row of setae on tergite I only (vs continuous row of setae on tergite I–III in M. ochrolaemi) (3) fewer setae on female sternites IV and V (32–37 vs 39–48). Description. Female (n = 3). As in Figs 2 and 18. Hypopharyngeal sclerites fully developed. Length of dhs 10, 0.043–0.063; dhs 11, 0.108–0.127; ratio dhs 10/11, 0.39–0.54; ls5, 0.03 long, latero-ventral fringe with 9–10 setae. Gula with 3–4 setae on each side. Pronotum with 6 setae on posterior margin and 3 short spiniform setae at each lateral corner. Prosternal plate with rounded anterior margin (Fig. 2). First tibia with 3 outer ventro-lateral and 4 dorso-lateral setae. Metanotum slightly enlarged with rounded posterior margin, with 11–15 marginal setae; metasternal plate with 6–8 setae; metapleurites with 3–4 short strong spiniform. Femur III with 14–19 setae in ventral setal brush. Tergites not enlarged and unmodified, only tergite I and II with very slightly rounded posterior margin (Fig. 2). Abdominal segments with continuous row of setae on tergite I and median gap in the row of tergal setae on tergites II–VIII. Tergal setae: I, 19–21; II, 17; III, 15–17; IV, 14–16; V, 14; VI, 12–14; VII, 10–12; VIII, 4– 5. Postspiracular setae very long on II, IV and VIII (0.45–0.50); long on I and VII (0.26–0.37); and short on III, V and VI (0.11–0.23). Inner posterior seta of last tergum not longer than anal fringe setae with length 0.02–0.05; length of short lateral marginal seta of last segment, 0.05. Pleural setae: I, 7–9; II, 9–10; III, 8–11; IV, 8–9; V, 7–8; VI, 6; VII, 5; VIII, 3. Pleurites mostly with short spine-like setae; slender and longer setae on pleurites IV–VII, 0– 2; without anterior setae. Pleurite VIII with inner setae (0.05–0.06) as long as outer (0.05–0.06). Anterior margin of sternal plate II with a medial notch. Sternal setae: I, 0; II, 5 in each aster, aster setae length: s1, 0.10–0.12; s2, 0.07– 0.11; s3, 0.05–0.06; s4, 0.05–0.06; s5, 0.03–0.04; with 11–13 marginal setae between asters, 4–6 medioanterior; III, 20–24; IV, 32–37; V, 33–37; VI, 30–31; VII, 16–19; VIII–IX, 13–16; and 14–18 setae on deeply serrated vulvar margin; in one specimen sternites IV–V with 1 medioanterior seta. Anal fringe formed by 43–51 dorsal and 45–47 ventral setae. Dimensions: TW, 0.49–0.50; POW, 0.37; HL, 0.34–0.35; PW, 0.30–0.32; MW, 0.48–0.51; AWIV, 0.65–0.66; ANW, 0.27; TL, 1.50–1.55. Male (n = 3). As in Fig. 19. Similar to female except as follows: length of dhs 10, 0.048–0.050; dhs 11, 0.100– 0.113; ratio dhs 10/11, 0.44–0.48; ls5 0.03–0.04 long, latero-ventral fringe with 9–10 setae. Gula with 3 setae on each side. Metanotum not enlarged with 8–10 marginal setae; metasternal plate with 7 setae; metapleurites with 3– 4 short spiniform strong setae. Femur III with 11–15 setae in ventral setal brush. Abdominal segments with welldefined median gap in each row of tergal setae. Tergal setae: I, 12–16; II, 12–15; III, 1 1–15; IV, 12–14; V, 12–13; VI, 12–14; VII, 11; VIII, 4–6; Postspiracular setae very long on II, IV and VIII (0.45–0.49); long on I and VII (0.20–0.31); and short on III, V and VI (0.07–0.12). Length of inner posterior seta of last tergum, 0.04–0.05; short lateral marginal seta of last segment, 0.02. Pleural setae: I, 5–7; II, 7–9; III, 7–8; IV, 6–8; V, 5–7; VI, 4–5; VII, 4; VIII, 3. Pleurites I–III with only short spine-like setae; pleurites IV–VII with 1–2 slender setae; without anterior setae. Pleurite VIII with inner setae (0.05–0.06) twice as long as outer (0.02–0.03). Anterior margin of sternal plate II with a medial notch. Sternal setae: I, 0; II, 5 in each aster: s1, 0.08–0.10; s2, 0.07–0.10; s3, 0.06–0.07; s4, 0.04– 0.06; s5, 0.03–0.04; with 12–13 marginal setae between asters, 5–6 medioanterior; III, 17–21; IV, 24–28; V, 28–30; VI, 25–28; VII, 19–20; VIII, 14; remainder of plate, 13–15; and with 5–6 setae posteriorly; in one species sternite VIII with 1 medioanterior seta. With 8 internal anal setae. Genital sac sclerite as in Figs 6–7. Dimensions: TW, 0.43–0.45; POW, 0.32–0.33; HL, 0.30–0.32; PW, 0.26–0.28; MW, 0.39–0.40; AWIV, 0.48–0.49; GW, 0.08–0.12; GSL, 0.08–0.12; TL, 1.28–1.29. Etymology. The species epithet is a noun in apposition derived from the species name of the type host. Remarks. This is the first record of a chewing louse from Automolus leucophthalmus. A portion of COI gene was sequenced from specimens of M. leucophthalmi from Paraguay (GenBank MF563529). As expected, the closest species among other published sequences of Neotropical Myrsidea was M. ochrolaemi (ex Automolus ochrolaemus (Tschudi, 1844), family Furnariidae, GenBank JN638820), with a sequence divergence of 11.7%. This divergence is close to the limit of accepted interspecific variation (see Price et al. 2008a; Kolencik et al. 2017) but, together with their morphological differences, we are confident that M. leucophthalmi and M. ochrolaemi represent separate species., Published as part of Kolencik, Stanislav, Sychra, Oldrich, Papousek, Ivo, Kuabara, Kamila M. D., Valim, Michel P. & Literak, Ivan, 2018, New species and additional data on the chewing louse genus Myrsidea (Phthiraptera: Menoponidae) from wild Neotropical Passeriformes (Aves), pp. 401-431 in Zootaxa 4418 (5) on pages 408-409, DOI: 10.11646/zootaxa.4418.5.1, http://zenodo.org/record/1244956, {"references":["Sychra, O., Literak, I., Capek, M. & Havlicek, M. (2007) Chewing lice (Phthiraptera) from ovenbirds, leaftossers and woodcreepers (Passeriformes: Furnariidae: Furnariinae, Sclerurinae, Dendrocolaptinae) from Costa Rica, with descriptions of four new species of the genera Rallicola and Myrsidea. Caribbean Journal of Science, 43 (1), 117 - 126. https: // doi. org / 10.18475 / cjos. v 43 i 1. a 11","Price, R. D., Johnson, K. P. & Dalgleish, R. C. (2008 a) Myrsidea Waterston (Phthiraptera: Menoponidae) from wrens (Passeriformes: Troglodytidae), with descriptions of three new species. Zootaxa, 1740, 59 - 65.","Kolencik, S., Sychra, O., Papousek, I. & Literak, I. (2017) Where are the species limits? Morphology versus genetics in Neotropical chewing lice of the genus Myrsidea (Phthiraptera: Menoponidae), with description of three new species. Zootaxa, 4324 (1), 161 - 179. https: // doi. org / 10.11646 / zootaxa. 4324.1.9"]}