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Apomyrsidea klimesi (Sychra in Sychra et al., 2006) gen. et comb. nov. Figs 1–7, 10 Myrsidea klimesi Sychra in Sychra et al., 2006: 55, figs 10–11, 14–15 (type host: Formicarius analis (d’Orbigny & Lafresnaye, 1837)). Material examined Holotype COSTA RICA • ♀; Hitoy Cerere BR, Provincia Limón; 9°40′ N, 85°27′ W; 100 m a.s.l.; 27 Aug. 2004; Literak, Capek and Havlicek leg.; ex Formicarius analis (d’Orbigny & Lafresnaye, 1837); INBio O.Sychra CR15. Allotype COSTA RICA • ♂; same collection data as for holotype; INBio O.Sychra CR15. Paratypes (1 ♀, 1 ♂) COSTA RICA • 1 ♀, 1 ♂; same collection data as for holotype; 27 and 31 Aug. 2004; INBio O.Sychra CR14, CR16. Other material COSTA RICA • 1 ♂; Zona Protectora Las Tablas on the Pacific slope of the Cordillera de Talamanca; 8°54′ N, 82°47′ W; 1300 m a.s.l.; 21. Aug. 2010; Sychra and Literak leg.; ex Formicarius analis; MMBC O.Sychra CR226.

Genus Apomyrsidea gen. nov. urn:lsid:zoobank.org:act: 5A86DF15-251D-4262-9BDF-92A3E1BE9C6C Myrsidea Waterston, 1915: 12 (in partim). Type species Apomyrsidea klimesi (Sychra in Sychra et al., 2006: 55) gen. et comb. nov. Diagnosis Apomyrsidea can be characterized and distinguished from all other menoponid chewing lice genera with the combination of following characteristics: Head - rounded anteriorly, lacking lateral slit or notch, without sclerotized processes (oral spines) arising near the base of maxillary palpi (Figs 1���3); - alveoli of dorsal head setae (dhs; marginal temporal setae by Clay 1969) 26 and 27 not closely associated (Fig. 3); - dhs 18 (outer mid-dorsal head seta by Clay (1966) or dorsal head seta ���d��� by Clay (1962) is missing; - dhs 22 (outer occipital seta by Valim & Weckstein 2013 or posterior dorsal head seta ���f��� by Clay 1962) approximately as long as dhs 21 (inner occipital seta by Valim & Weckstein 2013), both surpassing pronotal carina; - dhs 23 (posterior dorsal head seta ���e��� in Clay 1962) present and anteriorly to line of bases of dhs 21 and 22 (Fig. 3); - head sensilla 3���5 sensu Clay (1961) or c���e sensu Clay (1969) absent; - characteristic gular plate with the greater length and thickness of the posterior pair of setae compared to the rest ones (Figs 1���2). Thorax - prosternal plate well developed with straight anterior margin and two anterior setae (Fig. 4); - pronotum with one pair of minute dorso-central pronotal setae lying near the transverse carina (dps 2 by Clay 1962) (Fig. 3); - pronotum with anterolateral pronotal setae (marginal prothoracic setae 1���3, mps 1���3 in Clay 1962) in following arrangement: mps 1 and mps 3 spine-like, mps 2 fine and long; mps 1 and mps 2 located on each lateral corner of pronotum, with mps 3 posteriorly to mps 2 on pronotal margin (Fig. 3); - mesonotum well defined with only two anterior setae; - mesonotum without median division, but with a Y-shaped line just below postnotum, not forming a suture or even splitting mesonotum (Fig. 3). This Y-shaped line slightly less evident, but also discernible in good specimens from other host families; - strongly sclerotized ring-like mesothorax ��� mesothorax with sternum, pleura and tergum fused to form strongly sclerotized ring round the body; - femur III without combs of spine-like setae but with thick or sparse brushes of setae. Abdomen - sternite I mostly surrounded by sternite II (it lies inside the wide notch of sternite II) (Fig. 5); - sternite II enlarged with a clutch of heavy spine-like setae at each posterior-lateral margin called aster; - male genitalia as in Fig. 6. - male genital sac sclerite with two roughly serrated spiculated lateral arms (Figs 7���9); - female vulva with smooth posterior margin (Fig. 1); - female ventral anal margin without lateral seta-bearing processes (see Clay 1969); - sternite VII fused with VIII + IX+ X, forming female subgenital plate, although with a distinct transverse fenestra distinctly enclosed at lateral sides of subgenital plate where seventh and eighth segments fused (in A. circumsternata and A. isacantha; see Valim & Weckstein 2013: fig. 11); in the case of A. klimesi ��� male abdominal sternite VIII and female sternite VII both separated from the subgenital plate, which is formed by a single sternite IX (in the male) or fusion of sternites VIII and IX (in the female) (Figs 1���2). Etymology The generic name Apomyrsidea is formed by a combination of Greek word ��� Apo ��� = ���from��� and Myrsidea, referring that it is separated from the genus Myrsidea, where it was originally placed. The gender is feminine. Included species Three species are included in the Apomyrsidea gen. nov., all are restricted to formicariid hosts: Apomyrsidea circumsternata (Valim & Weckstein, 2013) gen. et comb. nov. Apomyrsidea isacantha (Valim & Weckstein, 2013) gen. et comb. nov. Apomyrsidea klimesi (Sychra in Sychra et al., 2006) gen. et comb. nov. Descriptions of all three species are well presented in the original papers (Sychra et al. 2006; Valim & Weckstein 2013). Valim & Weckstein (2013) also presented a key to their identification., Published as part of Kolencik, Stanislav, Sychra, Old��ich & Allen, Julie M., 2021, Another puzzle piece in the systematics of the chewing louse genus Myrsidea, with a description of a new genus Apomyrsidea, pp. 36-50 in European Journal of Taxonomy 748 on pages 39-43, DOI: 10.5852/ejt.2021.748.1339, http://zenodo.org/record/4736151, {"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","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. https: // doi. org / 10.11646 / zootaxa. 1206.1.3","Clay T. 1969. A key to the genera of the Menoponidae (Amblycera: Mallophaga: Insecta). Bulletin of the British Museum (Natural History) Entomology 24: 3 - 26. https: // doi. org / 10.5962 / bhl. part. 1517","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","Clay T. 1962. A key to the species of Actornithophilus Ferris with notes and descriptions of new species. Bulletin of the British Museum (Natural History) Entomology 11: 189 - 244.","Valim M. P. & Weckstein J. D. 2013. A drop in the bucket of the megadiverse chewing louse genus Myrsidea (Phthiraptera, Amblyclera, Menoponidae): ten new species from Amazonian Brazil. Folia Parasitologica 60: 377 - 400. https: // doi. org / 10.14411 / fp. 2013.040","Clay T. 1961. A new genus and species of the Menoponidae (Mallophaga, Insecta) from Apteryx. Annals and Magazine of Natural History (Series 13) 3: 571 - 576. https: // doi. org / 10.1080 / 00222936008651059"]}

Apomyrsidea circumsternata (Valim & Weckstein, 2013) gen. et comb. nov. Figs 8, 10 Myrsidea circumsternata Valim & Weckstein, 2013: 383, figs 3���4, 13���15, 17, 19, 22 (type host: Formicarius colma Boddaert, 1783). Material examined Holotype BRAZIL ��� ♀; Rio Acanau��, Munic��pio Japur��, Amazonas; 2��01���38��� S; 66��40���28��� W; 20 Jul. 2007; Weckstein leg.; ex Formicarius colma Boddaert, 1783; MZUSP 2314. Paratypes (2 ♀♀, 3 ♂♂) BRAZIL ��� 1 ♂; same collection data as for holotype; FMNH-INS 94002 ��� 1 ♀; same collection data as for holotype; DNA voucher Mysp.Foco.1.4.2011.3; FMNH-INS 94003 ��� 2 ♂♂; same collection data as for holotype; MZUSP 2316, MZUSP 2317 ��� 1 ♀; same collection data as for holotype; MZUSP 2315., Published as part of Kolencik, Stanislav, Sychra, Old��ich & Allen, Julie M., 2021, Another puzzle piece in the systematics of the chewing louse genus Myrsidea, with a description of a new genus Apomyrsidea, pp. 36-50 in European Journal of Taxonomy 748 on pages 43-44, DOI: 10.5852/ejt.2021.748.1339, http://zenodo.org/record/4736151, {"references":["Valim M. P. & Weckstein J. D. 2013. A drop in the bucket of the megadiverse chewing louse genus Myrsidea (Phthiraptera, Amblyclera, Menoponidae): ten new species from Amazonian Brazil. Folia Parasitologica 60: 377 - 400. https: // doi. org / 10.14411 / fp. 2013.040"]}