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This contribution is the first part of a series designed to summarize the present knowledge on the fauna of true bugs (Hemiptera: Heteroptera) of the Socotra Archipelago. A review of aquatic, semiaquatic and shore bugs of the infraorders Nepomorpha, Gerromorpha, and Leptopodomorpha of Socotra is provided. Nine families and 19 species are recorded from the Socotra Island (including two marine off-shore species). The following new species and new records are given: Micronecta eupompe Hutchinson, 1930 (Micronectidae), Sigara hoggarica Poisson, 1929 (Corixidae), Hebrus kanyukovae sp. nov., Hebrus sp. (Hebridae), Microvelia gracillima Reuter, 1882, M. macani Brown, 1953 (Veliidae), Limnogonus cereiventris (Signoret, 1862) (Gerridae), Micracanthia ornatula (Reuter, 1881), and Saldula niveolimbata (Reuter, 1900) (Saldidae). The following new faunistic records are also provided: Micronecta eupompe from Burkina Faso, Anisops varius from Jordan and Rwanda, Mesovelia vittigera Horváth, 1895 (Mesoveliidae) from Mali, Micracanthia ornatula from Guinea-Bissau, Mali, Zambia, China (Sichuan), and Bangladesh, and Saldula niveolimbata from Mali. The status of the type specimens is discussed and corrected for Anisops varius var. scutellata Fieber, 1851 (syntypes), Anisops varius var. sugillata Fieber, 1851 (lectotype), Anisops hoggarica Poisson, 1929 (syntypes), Halobates germanus White, 1883 (lectotype), Halobates sewelli Imms, 1936 (lectotype), Limnogous leptocerus (Reuter, 1882) (lectotype), and Microvelia gracillima Reuter, 1882 (holotype versus neotype).

Ochterus grandiusculus Nieser & Chen, 1992 Ochterus grandiusculus Nieser & Chen, 1992: 11 ‒12 (description, differential diagnosis, illustration). HOLOTYPE:, Indonesia: Sulawesi: ʻSulawesi Tenggara, road Kolaka-Kendari Km 20’ (MUDH). Ochterus grandiusculus: NIESER & CHEN (1999): 89 –90 (key, illustration); CHEN et al. (2005): 413 (checklist). Distribution. Australian Region: Indonesia: Sulawesi (NIESER & CHEN 1992)., Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on page 38, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659, {"references":["NIESER N. & CHEN P. - P. 1992: Notes on Gelastocoridae and Ochteridae (Heteroptera) with the description of five new species. Storkia 1: 2 - 13.","NIESER N. & CHEN P. - P. 1999: Sixteen new species of Nepomorpha mainly from Sulawesi. Notes on Malaysian aquatic and semiaquatic bugs (Heteroptera), VIII. Tijdschrift voor Entomologie 142: 77 - 123.","CHEN P. - P., NIESER N. & ZETTEL H. 2005: The aquatic and semi-aquatic bugs (Heteroptera: Nepomorpha & Gerromorpha) of Malesia. Fauna Malesiana Handbook, Vol. 5. Brill, Leiden - Boston, x + 546 pp."]}

Ochterus feae Mancini, 1939 (Figs 20–23) Pelogonus marginatus (misidentification): MONTANDON (1897): 365 (variability, distribution); DISTANT (1906): 14 (illustration of the specimen from MONTANDON 1897). Ochterus Feae Mancini, 1939a: 125 –126 (description, differential diagnosis, illustrations). HOLOTYPE: ♀ (Figs 20–23), Myanmar: ʻCarin: Asciuii Ghecù’ (MCSN). Ochterus feae: KORMILEV (1971): 443 (list). Material examined. LAOS: LUANG PRABANG : Louang Pharabang prov., Ban Song Cha (5 km W), 20°33–34′N 102°14′E, ca. 1200 m a.s.l., 24.iv.–16.v.1999, 6, V. Kubáň lgt. (4 MMBC, 2 NMPC). OUDOMXAY : Oudomxai (17 km NEE), 20°46′N 102°09′E, ca. 1100 m a.s.l., 1.–9.v. 2002, 1 1 ♀, V.Kubáň lgt. (MMBC). MYANMAR: CHIN : Chin hills, NW of Falam, 400--500 m a.s.l., v.--vi. 2016, 12 6 ♀♀, A.Carapezza det. (ACPI). THAILAND: CHIANG MAI : San Pakia village, 19.19°N 98.50°E, 1400 m a.s.l., 1 3 ♀♀, 1.–15.v.1998, V. Kubáň lgt. (1 2 ♀♀ MMBC, 1 ♀ NMPC). MAE HONG SON : Ban Huai Po, 1600–2000 m a.s.l., 1, J.Horák lgt. (NMPC). TAK : Umphang, 16°04′N 98°53′E, 500 m a.s.l., 26.iv.–6.v.[19]91, 1 ♀, D. Král lgt. (NMPC).All P. Kment det. Distribution. Oriental Region: Laos (new record); Myanmar (MONTANDON 1897, DISTANT 1906, as P. marginatus; MANCINI 1939a); Thailand (new record). Note. This species was described based on a female holotype and has never been recorded again. It is related to O. marginatus, from which it differs mainly by the anterior margin of the head being distinctly reflexed (see KORMILEV 1971). The photographs of the holotype of O. feae (Figs 20–23) are presented here for the first time., Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on pages 37-38, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659, {"references":["MONTANDON A. L. 1897: Viaggio di Leonardo Fea in Birmania e regioni vicine. LXXV. Hemiptera Cryptocerata. Annali del Museo Civico di Storia Naturale di Genova, Serie 2 17: 365 - 377.","DISTANT W. L. 1906: Rhynchota. Vol III. (Heteroptera-Homoptera). In: BINGHAM C. T. (ed.): The fauna of British India including Ceylon and Burma. Taylor and Francis, London, xiv + 503 pp.","MANCINI C. 1939 a: Osservazioni sugli Ochterus del Museo Civico di Storia Naturale di Genova (hemipt.). Bollettino della Societa Entomologica Italiana 67: 123 - 126.","KORMILEV N. A. 1971: Ochteridae from the Oriental and Australian Regions (Hemiptera-Heteroptera). Pacific Insects 13: 429 - 444."]}

Ochterus secundus secundus Kormilev, 1971 Ochterus secundus Kormilev, 1971: 434, 441 –442 (description, differential diagnosis, illustrations). HOLOTYPE:, Australia: New South Wales: ‘ N. S. W., N. Cronully [= Cronulla]ʼ (AMSA). Ochterus secundus: BAEHR (1989): 113, 116, 118, 123–124 (key to species, redescription, illustrations). Ochterus secundus secundus: BAEHR (1990b): 450, 461, 475 (key to species, diagnosis, illustration, new status); CASSIS & GROSS (1995): 262 (catalogue); ANDERSEN & WEIR (2004): 266 –267, 270, 336 (key to species, illustrations, checklist). Distribution. Australian Region: Australia: Australian Capital Territory (BAEHR 1990 b, ANDERSEN & WEIR 2004), New South Wales (KORMILEV 1971, BAEHR 1989, ANDERSEN & WEIR 2004), Queensland (KORMILEV 1971, BAEHR 1989, 1990b; ANDERSEN & WEIR 2004), South Australia (BAEHR 1989, ANDERSEN & WEIR 2004), Victoria (KORMILEV 1971; BAEHR 1989, 1990b; ANDERSEN & WEIR 2004), Western Australia (BAEHR 1989, ANDERSEN & WEIR 2004)., Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on page 46, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659, {"references":["KORMILEV N. A. 1971: Ochteridae from the Oriental and Australian Regions (Hemiptera-Heteroptera). Pacific Insects 13: 429 - 444.","BAEHR M. 1989: Review of the Australian Ochteridae (Insecta, Heteroptera). Spixiana 11: 111 - 126.","BAEHR M. 1990 b: Revision of the genus Ochterus Latreille in the Australian Region (Heteroptera: Ochteridae). Entomologica Scandinavica 20: 449 - 477.","CASSIS G. & GROSS G. F. 1995: Hemiptera: Heteroptera (Coleorrhyncha to Cimicomorpha). In: HOUSTON W. W. K. & MAYNARD G. V. (eds): Zoological Catalogue of Australia. Vol. 27.3 A. Melbourne, CSIRO Publishing, xv + 506 pp.","ANDERSEN N. M. & WEIR T. A. 2004: Australian water bugs. Their biology and identification (Hemiptera-Heteroptera, Gerromorpha & Nepomorpha). Entomograph Vol. 14. Apollo Books, Stenstrup & CSIRO Publishing, Collingwood, 344 pp.","HEBSGAARD M. B., ANDERSEN N. M. & DAMGAARD J. 2004: Phylogeny of the true water bugs (Nepomorpha: Hemiptera-Heteroptera) based on 16 S and 28 S rDNA and morphology. Systematic Entomology 29: 488 - 508."]}

Ochterus magnus Gapud & San Valentin, 1977 Ochterus magnus Gapud & San Valentin, 1977: 272, 282, 285– 287 –291, 296–298 (key to species, description, illustrations). HOLOTYPE:, Philippines: Luzon:‘ Humayao Creek, Pajo, Alfonso, Cavite’ (UPLB). Ochterus magnus: GAPUD (1986): 32, 40–42 (key to species, redescription, illustration); GAPUD (2003): 107 (checklist); CHEN et al. (2005): 413 (checklist). Distribution. Oriental Region: Philippines: Luzon (GAPUD & SAN VALENTIN 1977, GAPUD 1981)., Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on page 39, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659, {"references":["GAPUD V. P. & SAN VALENTIN H. O. 1977: The Ochteridae (Hemiptera) of the Philippines. Kalikasan, Philippine Journal of Biology 6 (3): 269 - 300.","GAPUD V. P. 1986: Philippine water bugs. Guide to Philippine Flora and Fauna 8: 1 - 47.","GAPUD V. P. 2003: Two new Philippine Ochterus Latreille (Insecta: Heteroptera: Ochteridae) and checklist of Philippine species. Annalen des Naturhistorischen Museums in Wien, Serie B 104 [2002]: 99 - 108.","CHEN P. - P., NIESER N. & ZETTEL H. 2005: The aquatic and semi-aquatic bugs (Heteroptera: Nepomorpha & Gerromorpha) of Malesia. Fauna Malesiana Handbook, Vol. 5. Brill, Leiden - Boston, x + 546 pp.","GAPUD V. P. 1981: Contribution to the taxonomy of the genus Ochterus Latreille (Hemiptera: Ochteridae). Kalikasan, Philippine Journal of Biology 10 (2 - 3): 300 - 309."]}

Ochterus cheesmannae Baehr, 1990 Ochterus cheesmannae Baehr, 1990b: 450, 453, 455–459, 461, 473 ‒474 (key to species, description, illustrations). HOLOTYPE:, Indonesia: West Papua: ʻN. Dutch New Guinea: Waigeu, Camp Nok., 2500 ft [= 762 m a.s.l.]’ (BMNH). Ochterus cheesmannae: CHEN et al. (2005): 413 (checklist). Distribution. Australian Region: Indonesia: West Papua: Waigeo Island (BAEHR 1990b, CHEN et al. 2005), Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on page 37, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659, {"references":["BAEHR M. 1990 b: Revision of the genus Ochterus Latreille in the Australian Region (Heteroptera: Ochteridae). Entomologica Scandinavica 20: 449 - 477.","CHEN P. - P., NIESER N. & ZETTEL H. 2005: The aquatic and semi-aquatic bugs (Heteroptera: Nepomorpha & Gerromorpha) of Malesia. Fauna Malesiana Handbook, Vol. 5. Brill, Leiden - Boston, x + 546 pp."]}

Ochterus perbosci (Guérin-Méneville, 1843) Pelogonus Perboscii Guérin-Méneville, 1843: 113 –114 (original description,differential diagnosis). LECTOTYPE (designated by CHAMPION 1901: 345, as type):, Mexico: Campeche: ‘dans la baie Campèche’ [= in the Campeche bay] (coll. Sallé + BMNH). Pelogonus Perboscii: FIEBER (1851): 15 (checklist); DOHRN (1859): 52 (list); STÅL (1876): 137 (catalogue). Pelogonus perbosci: CHAMPION (1901): 344–345, Pl. XX: fig. 11 (key, diagnosis, illustration). Ochterus perbosci (i): TORRE BUENO (1906): 50 (list). Ochterus perboscii: KIRKALDY & TORRE BUENO (1909): 179 (catalogue). Pelogonus Perbosci: MONTANDON (1910): 1 (note). Ochterus perbosci: BARBER (1913): 213 (key to species); VAN DUZEE (1923): 167 (distribution); SCHELL (1943a): 32 –33, 35 (key to species, original description repeated, differential diagnosis, illustration); DRAKE (1952):75 (checklist); COBBEN (1960): 54 (distribution); NIESER (1975): 26, 28–29, 31, Pl. 2a (key to species, diagnosis, illustrations); POLHEMUS (1976): 226, 242 (listed); FROESCHNER (1981): 61 (catalogue); POLHEMUS & POLHEMUS (1988a): 543 (catalogue); NIESER & AL- KINS KOO (1991):13–14 (key); NIESER & CHEN (1992): 8 (distribution); NIESER & MELO (1997):12, 50 (distribution); FROESCHNER (1999): 148 (catalogue); BASS (2003): 66 (distribution); VIANNA & MELO (2003): 126 –127 (distribution); MELO & NIESER (2004): 44 (distribution); SOUZA et al. (2006): 808 (distribution); PEREIRA & MELO (2007): 645 (distribution); HECKMAN (2011): 458 (key to species, illustration); MOREIRA et al. (2011): 58 (checklist, Brazil); CIANFERONI (2012): 67 (key to species); BROŻEK (2013): 342, 343, 345, 372 (morphology); CORDEIRO et al. (2014): 496 (key to species, illustrations); BARBOSA & RODRIGUES (2015): 163 (listed); BROŻEK (2015): 6, 14, 21–24 (morphology); LLANO & GUTIÉRREZ (2015): 377 (list); POLHEMUS & POLHEMUS (2016):13, 15–16, 55–58 (key to species, redescription, illustrations). Pelogonus marginatus (misidentification, partim): UHLER (1893): 706 (list, ‘two forms’); UHLER (1894): 222 (variability). Material examined. MEXICO: BAJA CALIFORNIA SUR : [El] Triunfo, 8.vii.1914, 1, G. H. Harris lgt., C. J. Drake det. (NMPC). SAN LUIS POTOSÍ : Valles, 17.vii.1950, 2 1 ♀, Drake & Hottes lgt., C. J. Drake det. (NMPC). TAMAULIPAS : Tampico, 16.vii.1950, 1, Drake & Hottes lgt., C. J. Drake det. (NMPC). Distribution. Nearctic Region: North America: USA: Arizona (DRAKE 1952, POLHEMUS & POLHEMUS 1988a), Texas (SCHELL 1943a; DRAKE 1952; POLHEMUS & POLHEMUS 1988a, 2016), Utah (POLHEMUS & POLHEMUS 2016). Neotropical Region: Central America: Belize (POLHEMUS & POLHEMUS 2016); Costa Rica (SCHELL 1943a); Guatemala (SCHELL 1943 a, POLHEMUS & POLHEMUS 2016); Honduras (POLHEMUS & POLHEMUS 2016); Mexico (KIRKALDY & TOR- RE BUENO 1909, SCHELL 1943 a, DRAKE 1952, POLHEMUS & POLHEMUS 1988a): Baja California Sur (POLHEMUS & POLHEMUS 2016), Campeche (CHAMPION 1901, MONTANDON 1910, POLHEMUS & POLHEMUS 2016), Chiapas (POLHEMUS & POLHEMUS 2016), Guanajuato (POLHEMUS & POLHEMUS 2016), Guerrero (POLHEMUS & POLHEMUS 2016), Jalisco (POLHEMUS & POLHEMUS 2016), Mexico (POLHEMUS & POLHEMUS 2016), Morelos (POLHEMUS & POLHEMUS 2016), Nayarit (POLHEMUS & POLHEMUS 2016), Oaxaca (POLHEMUS & POLHEMUS 2016), Pueblo (POLHEMUS & POLHEMUS 2016), San Luis Potosí (new record), Sinaloa (CHAMPION 1901, POLHEMUS & POLHEMUS 2016), Tamaulipas (POLHEMUS & POLHEMUS 2016), Veracruz (CHAMPION 1901, POLHEMUS & POLHEMUS 2016); Nicaragua (POLHEMUS & POLHEMUS 2016); Panama (POLHEMUS & POLHEMUS 2016). Caribbean Islands: Curaçao (COBBEN 1960); Grenada (UHLER 1894, as P. marginatus, partim; CHAMPION 1901, KIRKALDY & TORRE BUENO 1909, SCHELL 1943 a, POLHEMUS & POLHEMUS 2016); St. Vincent (UHLER 1893, as P. marginatus, partim; CHAMPION 1901, KIRKALDY & TORRE BUENO 1909, SCHELL 1943 a, POLHEMUS & POLHEMUS 2016); Trinidad and Tobago (NIESER & ALKINS KOO 1991, NIESER & CHEN 1992, BASS 2003). Souh America: Brazil: Amazonas (PEREIRA & MELO 2007, MOREIRA et al. 2011, CORDEIRO et al. 2014), Minas Gerais (NIESER & MELO 1997, VIANNA & MELO 2003, MELO & NIESER 2004, SOUZA et al. 2006, MOREIRA et al. 2011, CORDEIRO et al. 2014); Colombia (DRAKE 1952); Ecuador (SCHELL 1943 a, NIESER & CHEN 1992, CIANFERONI 2012); Paraguay (SCHELL 1943a); Peru (SCHELL 1943 a, DRAKE 1952); Suriname (NIESER 1975); Venezuela (POLHEMUS & POLHEMUS 2016). Notes. GUÉRIN- MÉNEVILLE (1843) dedicated the species to its collector, M. Perbosc, using the latinized form of his name (Perboscius, stem perbosci -) to form the name as O. perboscii, which is the correct original spelling of the name. The name was cited as O. perboscii at least five times (for references see above) until KIRKALDY & TORRE BUENO (1909), with a single exception of CHAMPION (1901). CHAMPION (1901), MONTANDON (1910), and all subsequent authors (for 27 additional references see above) used the incorrect subsequent spelling of the name, O. perbosci (see ICZN 1999: Art. 32.1–3, 33.3, 33.4). In this case the Article 33.3.1 (ICZN 1999) applies in favour of O. perbosci: ‘when an incorrect subsequent spelling is in prevailing usage and is attributed to the publication of the original spelling, the subsequent spelling and attribution are to be preserved and the spelling is deemed to be a correct original spelling.’ We recognize O. perbosci as being in prevailing usage and therefore the correct original spelling in the sense of ICZN (1999). GUÉRIN- MÉNEVILLE (1843) described the species based on unknown number of specimens and without information on their depository. CHAMPION (1901) wrote that: ‘The type of this insect was obtained by us from the Sallé collection’. CIANFERONI (2012) specified the sex of the specimen, incorrectly labelled as holotype, as male. Using the term ‘the type’ for the syntype he used for definition of the taxon, CHAMPION (1901) fulfilled the requirements of the Article 74.5 (ICZN 1999) and his action constitutes a valid lectotype designation. It was also recorded from Cuba by CHAMPION (1901) and KIRKALDY & TORRE BUENO (1909) by error (see NARANJO et al. 2010, POLHEMUS & POLHEMUS 2016)., Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on page 45, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659, {"references":["GUERIN-MENEVILLE F. E. 1843: Note sur la Naucoris rugosa de J. Desjardins, formant un nouveau genre d'Hemipteres, et description de plusieurs especes des genres Pelogonus et Mononyx. Revue Zoologique Societe Cuvier 6: 112 - 114.","CHAMPION G. C. 1897 - 1901: Insects. Rhynchota. Hemiptera - Heteroptera. Vol. II. In: GODMAN F. D. & SALVIN O. (eds): Biologia Centrali-Americana. Vol. II. R. H. Porter, London, xvi + 416 pp., 22 pl. [1901: i-xvi, 345 - 416]","FIEBER F. X. 1851: Genera Hydrocoridarum secundum ordinem naturalem in familias disposita. Calve, Pragae, 31 pp. [Preprint of Abhandlungen der Bohmischen Gesellschaft der Wissenschaften 7 [1852]: 178 - 211.]","DOHRN A. 1859: Catalogus Hemipterorum. Herrcke & Lebeling, Stettin, vii + 112 pp.","STAL C. 1876: Enumeratio Hemipterorum. Bidrag till en forteckning ofver alla hittills kanda Hemiptera, jemte systematiska meddelanden. 5. Kongliga Svenska Vetenskaps-Akademiens Handlingar 14 (4): 1 - 162.","TORRE BUENO J. R. DE LA 1906: The cryptocerate Hemiptera of America in the writings of professor Arnold L. Montandon. Proceedings of the Entomological Society of Washington 8: 45 - 58.","KIRKALDY G. W. & TORRE BUENO J. R. DE LA 1909: A catalogue of American aquatic and semi-aquatic Hemiptera. Proceedings of the Entomological Society of Washington 10 [1908]: 172 - 215.","MONTANDON A. L. 1910: Quelques types d'Hemipteres de Guerin Meneville des Collections du Musee Zoologique de l'Universite de Naples (Notes synonymiques et observations diverses). Annuario del Museo Zoologico della R. Universita di Napoli (Nuova Serie) 10 (3): 1 - 4.","BARBER H. G. 1913. Description of two new species of Ochterus Latr. (Hemiptera) with an arrangement of the North American species. Canadian Entomologist 45: 213 - 215.","VAN DUZEE E. P. 1923: Expedition of the California Academy of Sciences to the Gulf of California in 1921. The Hemiptera (true bugs, etc.). Proceedings of the California Academy of Sciences, Fourth Series 12: 123 - 200.","SCHELL D. V. 1943 a: The Ochteridae (Hemiptera) of the Western Hemisphere. Journal of the Kansas Entomological Society 16 (1): 29 - 36. [January 1943]","DRAKE C. J. 1952: Concerning American Ochteridae (Hemiptera). Florida Entomologist 35: 72 - 75.","COBBEN R. H. 1960: The Heteroptera of the Netherlands Antilles. III. Saldidae. Studies on the Fauna of Curacao and Other Caribbean Islands 11 (52): 44 - 61.","NIESER N. 1975: The water bugs (Heteroptera: Nepomorpha) of the Guyana region. Studies of the Fauna of Suriname and other Guyanas 16: 1 - 310 + 24 pls.","POLHEMUS J. T. & POLHEMUS M. S. 1976: Aquatic and semiaquatic Heteroptera of the Grand Canyon (Insecta: Hemiptera). Great Basin Naturalist 36: 221 - 226.","FROESCHNER R. C. 1981: Heteroptera or true bugs of Ecuador: A partial catalog. Smithsonian Contributions to Zoology 322: 1 - 147.","POLHEMUS D. A. & POLHEMUS J. T. 1988 a: Family Ochteridae Kirkaldy, 1906. The Velvety Shore Bugs. Pp. 541 - 543. In: HENRY T. J. & FROESCHNER R. C. (eds): Catalog of the Heteroptera, or True Bugs, of Canada and the Continental United States. E. J. Brill, Leiden, New York, Kobenhavn, Koln, xix + 958 pp.","NIESER N. & CHEN P. - P. 1992: Notes on Gelastocoridae and Ochteridae (Heteroptera) with the description of five new species. Storkia 1: 2 - 13.","NIESER N. & MELO A. L. DE 1997: Os heteropteros aquaticos de Minas Gerais. Editora UFMG, Belo Horizonte, 177 pp.","FROESCHNER R. C. 1999: True bugs (Heteroptera) of Panama: A synoptic catalog as a contribution to the study of Panamanian biodiversity. Memoirs of the American Entomological Institute 61: i- ii + 1 - 393.","BASS D. 2003: A survey of freshwater macroinvertebrates in Tobago. Living World, Journal of the Trinidad and Tobago Field Naturalist's Club 2003: 64 - 69","VIANNA G. J. C. & MELO A. L. DE 2003: Distribution patterns of aquatic and semi aquatic Heteroptera in Retiro das Pedras, Brumadinho, Minas Gerais, Brazil. Lundiana 4: 125 - 128.","MELO A. L. DE & NIESER N. 2004: Faunistical notes on aquatic Heteroptera of Minas Gerais (Brazil): an annotated list of Gerromorpha and Nepomorpha collected near Januaria, MG. Lundiana 5: 43 - 49.","SOUZA M. A. A. DE, MELO A. L. DE & VIANNA G. J. C. 2006: Heteropteros aquaticos oriundos do municipio de Mariana, MG. Neotropical Entomology 35: 803 - 810.","PEREIRA D. L. V. & MELO A. L. 2007: Aquatic and semiaquatic Heteroptera (Insecta) from Pitinga, Amazonas, Brazil. Acta Amazonica 37: 643 - 648.","HECKMAN 2011: Encyclopedia of South American aquatic insects: Hemiptera - Heteroptera. Illustrated keys to known families, genera, and species in South America. Springer, Dordrecht, Heidelberg, London, New York, ix + 679 pp.","MOREIRA F. F. F., BARBOSA J. F., RIBEIRO J. R. I. & ALECRIM V. P. 2011: Checklist and distribution of semiaquatic and aquatic Heteroptera (Gerromorpha and Nepomorpha) occurring in Brazil. Zootaxa 2958: 1 - 74.","CIANFERONI F. 2012. The Ochteridae of Ecuador, with new records and an identification key (Hemiptera: Heteroptera: Nepomorpha). Zootaxa 3260: 62 - 68.","BROZEK J. 2013: A comparison of external and internal maxilla and mandible morphology of water bugs (Hemiptera: Heteroptera: Nepomorpha). Zootaxa 3635 (4): 340 - 378.","CORDEIRO I. DA R. S., MOREIRA F. F. F. & SILVA F. A. C. DA 2014: A new Ochterus (Hemiptera: Heteroptera: Ochteridae) from northeastern Brazil, with a key to the species recorded from the country. Zootaxa 3860 (5): 493 - 497.","BARBOSA J. F. & RODRIGUES H. D. D. 2015: The true water bugs (Nepomorpha). Pp. 159 - 199. In: PANIZZI A. R. & GRAZIA J. (eds): True bugs (Heteroptera) of the Neotropics. Springer Science + Business Media, Dordrecht, xxii + 901 pp.","BROZEK J. 2015: Phylogenetic signals from Nepomorpha (Insecta: Hemiptera: Heteroptera) mouthparts: stylets bundle, sense organs, and labial segments. Scientific World Journal 2014 (237854): 1 - 30.","LLANO C. & GUTIERREZ Y. 2015: Primer registro de la familia Ochteridae (Hemiptera: Heteroptera: Nepomorpha), con el genero Ochterus Latreille, para la biota del departamento de Caldas. Boletin Cientifico Museo de Historia Natural Universidad de Caldas 19: 376 - 380.","POLHEMUS D. A. & POLHEMUS J. T. 2016: Revision of the genus Ochterus (Hemiptera: Heteroptera: Ochteridae) in Mesoamerica and the United States. Tijdschrift voor Entomologie 159: 9 - 75.","UHLER P. R. 1893: A list of the Hemiptera-Heteroptera collected in the Island of St. Vincent by Mr. Herbert H. Smith; with descriptions of new genera and species. Proceedings of the Zoological Society of London 1893: 705 - 719.","UHLER P. R. 1894: On the Hemiptera-Heteroptera of the Island of Grenada, West Indies. Proceedings of the Zoological Society of London 1894: 167 - 224.","KORMILEV N. A. & DE CARLO J. A. 1952: Una especie nueva del genero \" Ochterus \" Latreille (1807) del Paraguay (Hemiptera, Ochteridae). Anales de la Sociedad Cientifica Argentina 154: 155 - 159.","POLHEMUS D. A. 1992 a: The first records of the families Ochteridae and Hebridae (Heteroptera) from the granitic Seychelles, with descriptions of two new species. Journal of the New York Entomological Society 100: 418 - 423.","ICZN 1999: International Code of Zoological Nomenclature. Fourth edition. International Trust for Zoological Nomenclature, London, 306 pp.","NARANJO C., RIVIAUX S. M., MOREIRA F. F. F. & COURT R. C. 2010: Taxonomy and distribution of aquatic and semiaquatic Heteroptera (Insecta) from Cuba. Revista de Biologia Tropical 58: 897 - 907."]}

Ochterus gressitti Kormilev, 1971 Ochterus gressitti Kormilev, 1971: 434, 438 –439 (description, differential diagnosis, illustrations). HOLOTYPE:, Papua New Guinea: Morobe Province: ‘ NE New Guinea, Wampit V. near Gurakor village, near Wau, 550 mʼ (BPBM). Ochterus gressitti: GAPUD (1981): 303 –305, 307 (diagnosis, illustrations); BAEHR (1990b): 451, 453, 455–459, 461, 471 (key to species, redescription, illustrations); CHEN et al. (2005): 413 (checklist). Distribution. Australian Region: Indonesia: Papua (KOR- MILEV 1971), West Papua (KORMILEV 1971); Papua New Guinea (KORMILEV 1971, GAPUD 1981, BAEHR 1990b), incl. New Britain (KORMILEV 1972)., Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on page 38, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659, {"references":["KORMILEV N. A. 1971: Ochteridae from the Oriental and Australian Regions (Hemiptera-Heteroptera). Pacific Insects 13: 429 - 444.","GAPUD V. P. 1981: Contribution to the taxonomy of the genus Ochterus Latreille (Hemiptera: Ochteridae). Kalikasan, Philippine Journal of Biology 10 (2 - 3): 300 - 309.","BAEHR M. 1990 b: Revision of the genus Ochterus Latreille in the Australian Region (Heteroptera: Ochteridae). Entomologica Scandinavica 20: 449 - 477.","CHEN P. - P., NIESER N. & ZETTEL H. 2005: The aquatic and semi-aquatic bugs (Heteroptera: Nepomorpha & Gerromorpha) of Malesia. Fauna Malesiana Handbook, Vol. 5. Brill, Leiden - Boston, x + 546 pp.","KORMILEV N. A. 1972: A new species of the genus Ochterus Latreille, 1807, from New Guinea (Hemiptera-Heteroptera: Ochteridae). Pacific Insects 14: 585 - 587."]}

Ochterus homorfos Nieser & Chen, 1999 Ochterus homorfos Nieser & Chen, 1999: 90– 91 ‒92, 123 (key, description, illustrations). HOLOTYPE:, Indonesia: Sulawesi:ʻSulawesi Utara, Gunung Ambang NSG’ (NHMW). Ochterus homorfos: CHEN et al. (2005): 413 (checklist). Distribution. Australian Region: Indonesia: Sulawesi (NIESER & CHEN 1999).

Ƭ Floricaudus multilocellus Yao, Ren & Shih, 2011 Pristinochterus zhangi (misidentification): YAO et al. (2007): 832: fig. 18, 833: fig. 22 (illustration of specimen CNU-HE-LB2006317, see YAO et al. 2011). Floricaudus multilocellus Yao, Ren & Shih, 2011 in YAO et al. (2011): 591, 593 –594, 598 (original description, illustrations). HOLOTYPE:, CNU-HE-LB2008006 (CNUB). Type locality and horizon: China: ‘Huangbanjigou, Chaomidian Village, Beipiao City, Liaoning Province, Yixian Formation, Early Cretaceous.’ Floricaudus multilocellus: SCHUH & WEIRAUCH (2020): 150 –151 (list). Distribution. China: Liaoning (Yixian Formation: Early Cretaceous) (YAO et al. 2011).

Ochterus unidentatus Nieser & Chen, 1992 Ochterus unidentatus Nieser & Chen 1992: 7 –8 (description, differential diagnosis, illustration). HOLOTYPE:, Ecuador, ʻPichin, Tinalandia’ (MZLU). Ochterus unidentatus: CIANFERONI (2012): 63 –64, 67 (key to species for Ecuador, variability, illustrations). Material examined. ECUADOR: NAPO : 2.7 km SW of Diaz de Pineda, 0°19′10″S 77°45′33″W, 1560 m a.s.l., bank of the stony stream, sandy and clay bottom with algae with thin layer of the water, exposed, 1.xii.2006, 1 , M.Fikáček & J. Skuhrovec lgt., P.Kment det. (NMPC). PASTAZA : Puyo env., 11.–15.xii.2000, E-38, 1 ♀, V. Malý lgt., P. Kment det. (NMPC). Distribution. Neotropical Region: South America: Colombia (MANZANO et al. 1995, PADILLA- GIL 2015); Ecuador (CIANFERONI 2012). Note. According to POLHEMUS & POLHEMUS (2016: 44) this species may be a junior synonym of O. manni., Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on page 48, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659, {"references":["NIESER N. & CHEN P. - P. 1992: Notes on Gelastocoridae and Ochteridae (Heteroptera) with the description of five new species. Storkia 1: 2 - 13.","CIANFERONI F. 2012. The Ochteridae of Ecuador, with new records and an identification key (Hemiptera: Heteroptera: Nepomorpha). Zootaxa 3260: 62 - 68.","MANZANO M. DEL R., NIESER N. & CAICEDO G. 1995. Lista preliminar de heteropteros acuaticos en la Isla de Gorgona y Llanura del Pacifico. Biblioteca Jose Jeronimo Triana 11: 47 - 72.","POLHEMUS D. A. & POLHEMUS J. T. 2016: Revision of the genus Ochterus (Hemiptera: Heteroptera: Ochteridae) in Mesoamerica and the United States. Tijdschrift voor Entomologie 159: 9 - 75."]}

Ochterus manni Hungerford, 1927 Ochterus manni Hungerford, 1927: 189 (description, differential diagnosis). HOLOTYPE:, Bolivia: ‘ Huachi Rio Beni’ (USNM). Ochterus manni: SCHELL (1943a): 32, 35 (key to species, illustration); SCHELL (1943b): 46 (original description repeated, differential diagnosis); DRAKE (1952): 74 (checklist); HECKMAN (2011): 463 (key to species, illustration); CIANFERONI (2012): 67 (key to species); HERRERA MADRIGAL (2015): 256 (illustrations); POLHEMUS & POLHEMUS (2016): 12, 15–16, 41–44 (key to species, redescription, illustrations). Material examined. PANAMA: DARIÉN : Cerro Chucantí Reserve, base camp, 8°47.3′N 78°27.1′W, 800–1000 m a.s.l., lower montane forest, at light, 27.–30.viii.2017, 2 ♀♀, M. Fikáček, J. Hájek, M. Seidel & L. Sekerka lgt., P. Kment det. (NMPC). Distribution. Neotropical Region: Central America: Costa Rica (SCHELL 1943b, HERRERA MADRIGAL 2015, POLHEMUS & POLHEMUS 2016), Panama (POLHEMUS & POLHEMUS 2016); Bolivia (HUNGERFORD 1927, DRAKE 1952, POLHEMUS & POLHEMUS 2016). South America: Brazil: Pará (POLHEMUS & POLHEMUS 2016), Ecuador (CIANFERONI 2012, POLHEMUS & POLHEMUS 2016), Peru (SCHELL 1943b, POLHEMUS & POLHEMUS 2016). Note. According to POLHEMUS & POLHEMUS (2016), O. unidentatus Nieser & Chen, 1992 described from Ecuador may be synonym of this species., Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on page 39, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659, {"references":["HUNGERFORD H. B. 1927: A report upon the aquatic and semi-aquatic Hemiptera of the Mulford Biological Expedition to Bolivia, South- - America, 1921 - 22. Proceedings of the Entomomological Society of America 29: 187 - 190 + pl. 10.","SCHELL D. V. 1943 a: The Ochteridae (Hemiptera) of the Western Hemisphere. Journal of the Kansas Entomological Society 16 (1): 29 - 36. [January 1943]","SCHELL D. V. 1943 b: The Ochteridae (Hemiptera) of the Western Hemisphere. Journal of the Kansas Entomological Society 16 (2): 37 - 47. [April 1943]","DRAKE C. J. 1952: Concerning American Ochteridae (Hemiptera). Florida Entomologist 35: 72 - 75.","HECKMAN 2011: Encyclopedia of South American aquatic insects: Hemiptera - Heteroptera. Illustrated keys to known families, genera, and species in South America. Springer, Dordrecht, Heidelberg, London, New York, ix + 679 pp.","CIANFERONI F. 2012. The Ochteridae of Ecuador, with new records and an identification key (Hemiptera: Heteroptera: Nepomorpha). Zootaxa 3260: 62 - 68.","HERRERA MADRIGAL F. 2015: First record of the genus Ocyocherus from Colombia and new records of Ochteridae from Costa Rica (Hemiptera: Heteroptera). Acta Biologica Colombiana 20: 255 - 257.","POLHEMUS D. A. & POLHEMUS J. T. 2016: Revision of the genus Ochterus (Hemiptera: Heteroptera: Ochteridae) in Mesoamerica and the United States. Tijdschrift voor Entomologie 159: 9 - 75.","NIESER N. & CHEN P. - P. 1992: Notes on Gelastocoridae and Ochteridae (Heteroptera) with the description of five new species. Storkia 1: 2 - 13."]}

Ochterus explanatus D. A. Polhemus & J. T. Polhemus, 2016 Ochterus explanatus D.A.Polhemus & J.T. Polhemus, 2016: 11, 16, 39 –41 (key to species,description, illustrations). HOLOTYPE: ♀, Mexico:Duran- go:‘ Durango [incorrectly indicated as Sonora], 7 mi. W of Los Bancos [vic. 23°38‘54“N, 105°47‘56“W, elev. ~ 2320 m]’ (JTPC + USNM). Distribution. Neotropical Region: Central America: Mexico: Durango (POLHEMUS & POLHEMUS 2016), Oaxaca (POLHEMUS & POLHEMUS 2016).

Ochterus nigrinus Baehr, 1990 Ochterus nigrinus Baehr, 1990b: 451, 453–454, 456–459, 461, 464 –465 (key to species, description, illustrations). HOLOTYPE:, Solomon Islands: ʻGuadalcanal, Monitor Creek, Umasami R. ’ (BMNH). Ochterus nigrinus: CHEN et al. (2005): 413 (checklist). Distribution. Australian Region: Solomon Islands: Guadalcanal (BAEHR 1990b), Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on page 43, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659, {"references":["BAEHR M. 1990 b: Revision of the genus Ochterus Latreille in the Australian Region (Heteroptera: Ochteridae). Entomologica Scandinavica 20: 449 - 477.","CHEN P. - P., NIESER N. & ZETTEL H. 2005: The aquatic and semi-aquatic bugs (Heteroptera: Nepomorpha & Gerromorpha) of Malesia. Fauna Malesiana Handbook, Vol. 5. Brill, Leiden - Boston, x + 546 pp."]}

Ochterus polhemusi Gapud, 1981 Ochterus brunneus Gapud & San Valentin, 1977: 272, 276 –278, 281, 285–286, 288, 296–298 (key to species, description, illustrations). HOLOTYPE:, Philippines: Luzon: ʻMolawin Creek, Mt. Makiling, Laguna’ (UPLB). Junior homonym of Ochterus brunneus Hungerford, 1927. Ochterus brunneus: GAPUD (1986): 32, 34–36 (key to species, redescription, illustration). Ochterus polhemusi Gapud, 1981: 300 –301 (nomenclature). New substitute name for Ochterus brunneus Gapud & San Valentin, 1977. Ochterus polhemusi: GAPUD (2003): 107 (checklist); CHEN et al. (2005): 413 (checklist). Distribution. Oriental Region: Philippines: Cebu (GAPUD 2003), Laguna (GAPUD & SAN VALENTIN 1977, GAPUD 1981), Leyte (GAPUD 1981), Mindanao (GAPUD 1981), Mindoro (GAPUD & SAN VALENTIN 1977), Negros (GAPUD 2003)., Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on page 46, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659, {"references":["GAPUD V. P. 1981: Contribution to the taxonomy of the genus Ochterus Latreille (Hemiptera: Ochteridae). Kalikasan, Philippine Journal of Biology 10 (2 - 3): 300 - 309.","GAPUD V. P. & SAN VALENTIN H. O. 1977: The Ochteridae (Hemiptera) of the Philippines. Kalikasan, Philippine Journal of Biology 6 (3): 269 - 300.","HUNGERFORD H. B. 1927: A report upon the aquatic and semi-aquatic Hemiptera of the Mulford Biological Expedition to Bolivia, South- - America, 1921 - 22. Proceedings of the Entomomological Society of America 29: 187 - 190 + pl. 10.","GAPUD V. P. 1986: Philippine water bugs. Guide to Philippine Flora and Fauna 8: 1 - 47.","GAPUD V. P. 2003: Two new Philippine Ochterus Latreille (Insecta: Heteroptera: Ochteridae) and checklist of Philippine species. Annalen des Naturhistorischen Museums in Wien, Serie B 104 [2002]: 99 - 108.","CHEN P. - P., NIESER N. & ZETTEL H. 2005: The aquatic and semi-aquatic bugs (Heteroptera: Nepomorpha & Gerromorpha) of Malesia. Fauna Malesiana Handbook, Vol. 5. Brill, Leiden - Boston, x + 546 pp."]}

Ochterus baltazarae Gapud & San Valentin, 1977 Ochterus baltazarae Gapud & San Valentin, 1977: 272, 278 ‒283, 285–286, 288–289, 296–298 (key to species, description, illustrations, variation; partim, except paratypes of Zambales form). HOLOTYPE:, Philippines: Luzon: ʻQuezon National Park, Atimonan, Quezon’ (UPLB). Ochterus baltazarae: GAPUD (1986):32, 36–38 (key to species, redescription, illustration); GAPUD (2003):103, 107 (taxonomy, checklist); CHEN et al. (2005): 413 (checklist). Distribution. Oriental Region: Philippines: Luzon (GAPUD & SAN VALENTIN 1977). Note. Specimens of ‘ Zambales form’ belong actually to O. luzonicus Gapud, 2003 (GAPUD 2003)., Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on page 35, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659, {"references":["GAPUD V. P. & SAN VALENTIN H. O. 1977: The Ochteridae (Hemiptera) of the Philippines. Kalikasan, Philippine Journal of Biology 6 (3): 269 - 300.","GAPUD V. P. 1986: Philippine water bugs. Guide to Philippine Flora and Fauna 8: 1 - 47.","GAPUD V. P. 2003: Two new Philippine Ochterus Latreille (Insecta: Heteroptera: Ochteridae) and checklist of Philippine species. Annalen des Naturhistorischen Museums in Wien, Serie B 104 [2002]: 99 - 108.","CHEN P. - P., NIESER N. & ZETTEL H. 2005: The aquatic and semi-aquatic bugs (Heteroptera: Nepomorpha & Gerromorpha) of Malesia. Fauna Malesiana Handbook, Vol. 5. Brill, Leiden - Boston, x + 546 pp."]}

Ochterus philippinensis Kormilev, 1971 Ochterus philippinensis Kormilev, 1971: 434, 436 –437 (description, differential diagnosis, illustrations). HOLOTYPE:, Philippines: Mindoro: ‘ San Joseʼ (CASC). Ochterus philippinensis: GAPUD & SAN VALENTIN (1977): 272, 281, 291–292 (key to species, redescription, illustration); GAPUD (1981): 303 –304, 307 (diagnosis,illustrations); GAPUD (2003):107 (checklist); CHEN et al. (2005): 413 (checklist). Distribution. Oriental Region: Philippines: Mindoro (KOR- MILEV 1971, GAPUD & SAN VALENTIN 1977, GAPUD 1981). Ochterus piliferus Kormilev, 1973 Ochterus piliferus Kormilev, 1973: 2, 6 –8 (description, differential diagnosis, illustrations). HOLOTYPE:, Angola: ʻVila Luso, Moxico’ (CASC). Distribution. Afrotropical Region: Angola (KORMILEV 1973)., Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on pages 45-46, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659, {"references":["KORMILEV N. A. 1971: Ochteridae from the Oriental and Australian Regions (Hemiptera-Heteroptera). Pacific Insects 13: 429 - 444.","GAPUD V. P. & SAN VALENTIN H. O. 1977: The Ochteridae (Hemiptera) of the Philippines. Kalikasan, Philippine Journal of Biology 6 (3): 269 - 300.","GAPUD V. P. 1981: Contribution to the taxonomy of the genus Ochterus Latreille (Hemiptera: Ochteridae). Kalikasan, Philippine Journal of Biology 10 (2 - 3): 300 - 309.","GAPUD V. P. 2003: Two new Philippine Ochterus Latreille (Insecta: Heteroptera: Ochteridae) and checklist of Philippine species. Annalen des Naturhistorischen Museums in Wien, Serie B 104 [2002]: 99 - 108.","CHEN P. - P., NIESER N. & ZETTEL H. 2005: The aquatic and semi-aquatic bugs (Heteroptera: Nepomorpha & Gerromorpha) of Malesia. Fauna Malesiana Handbook, Vol. 5. Brill, Leiden - Boston, x + 546 pp.","KORMILEV N. A. 1973: Ochteridae from Western and Southern Africa (Hemiptera: Heteroptera). Occasional Papers of the California Academy of Sciences 106: 1 - 9."]}

Genus Megochterus Jaczewski, 1934 Megochterus Jaczewski, 1934: 610 –612 (description, differential diagnosis). Type species: Pelogonus nasutus Montandon, 1898 by original designation. Megochterus: JACZEWSKI (1935):482 (key to genera and species); SCHELL (1943a): 30 (key to genera); KORMILEV (1971): 443 (diagnosis); ŠTYS & JANSSON (1988): 7 (catalogue); BAEHR (1989): 112 (key to genera); BAEHR (1990a): 198 –202 (key to species, revision); CASSIS & GROSS (1995):259 (catalogue); ANDERSEN & WEIR (2004): 264 –265, 335 (key to genera, diagnosis, checklist); CHEN et al. (2005): 78 (key to genera); YAO et al. (2007): 828, 830 (key to genera, differential table); YAO et al. (2011): 590, 597–598 (key to genera, phylogeny); MELO (2015): 344 (key to genera, diagnosis)., Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on page 30, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659, {"references":["JACZEWSKI T. 1934: Notes on the Old World species of Ochteridae (Heteroptera). Annals and Magazine of Natural History, Series 10 13: 597 - 613.","MONTANDON A. L. 1898: Hemipteres Heteropteres nouveaux des collections du Museum de Paris. Bulletin du Museum d'Histoire Naturelle (Paris) 4: 72 - 75.","JACZEWSKI T. 1935: Die Uferwanzen (Heteroptera: Fam. Leptopodidae, Acanthiidae, Ochteridae und Mononychidae) der Deutschen Limnologischen Sunda-Expedition. Archiv fur Hydrobiologie, Suppl. - Band XIII ' Tropische Binnengewasser' 5: 474 - 483.","SCHELL D. V. 1943 a: The Ochteridae (Hemiptera) of the Western Hemisphere. Journal of the Kansas Entomological Society 16 (1): 29 - 36. [January 1943]","KORMILEV N. A. 1971: Ochteridae from the Oriental and Australian Regions (Hemiptera-Heteroptera). Pacific Insects 13: 429 - 444.","BAEHR M. 1989: Review of the Australian Ochteridae (Insecta, Heteroptera). Spixiana 11: 111 - 126.","BAEHR M. 1990 a: Revision of the genus Megochterus Jaczewski (Insecta: Heteroptera: Ochteridae). Invertebrate Taxonomy 4: 197 - 203","CASSIS G. & GROSS G. F. 1995: Hemiptera: Heteroptera (Coleorrhyncha to Cimicomorpha). In: HOUSTON W. W. K. & MAYNARD G. V. (eds): Zoological Catalogue of Australia. Vol. 27.3 A. Melbourne, CSIRO Publishing, xv + 506 pp.","ANDERSEN N. M. & WEIR T. A. 2004: Australian water bugs. Their biology and identification (Hemiptera-Heteroptera, Gerromorpha & Nepomorpha). Entomograph Vol. 14. Apollo Books, Stenstrup & CSIRO Publishing, Collingwood, 344 pp.","CHEN P. - P., NIESER N. & ZETTEL H. 2005: The aquatic and semi-aquatic bugs (Heteroptera: Nepomorpha & Gerromorpha) of Malesia. Fauna Malesiana Handbook, Vol. 5. Brill, Leiden - Boston, x + 546 pp.","YAO Y. - ZH., CAI W. - ZH. & REN D. 2007: Pristinochterus gen. n. (Hemiptera: Ochteridae) from the Upper Mesozoic of northeastern China. European Journal of Entomology 104: 827 - 835.","YAO Y. - ZH., ZHANG W. - T., REN D. & SHIH CH. - K. 2011: New fossil Ochteridae (Hemiptera: Heteroptera: Ochteroidea) from the Upper Mesozoic of north-eastern China, with phylogeny of the family. Systematic Entomology 36: 589 - 600.","MELO M. C. 2015: Ochteroidea. Pp. 341 - 346. In: ROIG-JUNENT S., CLAPS L. E. & MORRONE J. J. (eds): Biodiversidad de Artropodos Argentinos. Vol. 3. Universidad Nacional de Tucuman, Facultad de Ciencias, San Miguel de Tucuman, 546 pp."]}

Ochterus santosi Cordeiro & Moreira, 2014 Ochterus santosi Cordeiro & Moreira, 2014 in CORDEIRO et al. (2014): 494– 496 (key to species, description, illustrations). HOLOTYPE:, Brazil: Piauí:‘Piauí–Piracuruca, Parque Nacional de Sete Cidades, Olho d’água dos milagres, 4°05′32″S 41°40′48″W, 180 m a.s.l.’ (CZMA). Distribution. Neotropical Region: South America: Brazil: Piauí (CORDEIRO et al. 2014)., Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on page 46, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659, {"references":["CORDEIRO I. DA R. S., MOREIRA F. F. F. & SILVA F. A. C. DA 2014: A new Ochterus (Hemiptera: Heteroptera: Ochteridae) from northeastern Brazil, with a key to the species recorded from the country. Zootaxa 3860 (5): 493 - 497."]}

Ochterus ovatus D. A. Polhemus & J. T. Polhemus, 2016 Ochterus ovatus D.A. Polhemus & J. T. Polhemus, 2016: 17, 50 –53 (key to species, description, illustrations). HOLOTYPE:, Mexico: ‘ Chiapas, Soyalo, Rio Blanco, on road to Villahermosa ~ 14 mi. N of Hwy. 190, small swift mountain river with backwater pools [vic. 16°53‘27“N, 92°55‘30“W, elev. ~ 1200 m]’ (JTPC + USNM). Distribution. Neotropical Region: Central America: Mexico: Chiapas (POLHEMUS & POLHEMUS 2016)., Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on page 44, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659, {"references":["POLHEMUS D. A. & POLHEMUS J. T. 2016: Revision of the genus Ochterus (Hemiptera: Heteroptera: Ochteridae) in Mesoamerica and the United States. Tijdschrift voor Entomologie 159: 9 - 75."]}

Ochterus smaragdinus D. A. Polhemus & J. T. Polhemus, 2016 Ochterus smaragdinus D.A. Polhemus & J. T. Polhemus, 2016:18, 69 –71 (key to species, description, illustrations). HOLOTYPE:, Mexico: Chiapas:‘swift mountain river, 7 mi. N of Santa Fe [vic. 17°25‘56“N, 93°02‘05“W, elev. ~ 150 m]’ (JTPC + USNM). Distribution. Neotropical Region: Central America: Mexico: Chiapas (POLHEMUS & POLHEMUS 2016), Veracruz (POLHEMUS & POLHEMUS 2016).

Ochterus pardalos Nieser & Chen, 1999 Ochterus pardalos Nieser & Chen, 1999: 90, 93 ‒94, 123 (description, differential diagnosis, illustrations). HOLOTYPE:, Philippines: Mindanao: ʻLake Sebu area, trickle of water fed by seepage from ʻCold River’ ’ (NCTN). Ochterus pardalos: GAPUD (2003): 107 (checklist); CHEN et al. (2005): 413 (checklist). Distribution. Oriental Region: Philippines: Mindanao (NIESER & CHEN 1999, GAPUD 2003).

Genus Ocyochterus Drake & Gómez-Menor, 1954 Ocyochterus Drake & Gómez-Menor, 1954: 157 –158 (original description). Type species: Pelogonus victor Bolívar, 1879, by original designation. Ocyochterus: NIESER (1975): 26 (key to genera and species); FROESCHNER (1981):61 (key to genera); ŠTYS & JANSSON (1988): 8 (catalogue); YAO et al. (2007): 828, 830 (key to genera, differential table); MAZZUCCONI et al. (2009 a): 213 (key to genera); HECKMAN (2011): 457 (key to genera); YAO et al. (2011): 590, 597–598 (key to genera, phylogeny); POLHEMUS & POLHEMUS (2014): 164 –170 (key to genera and species, revision); BARBOSA & RODRIGUES (2015): 174, 176 (key to genera, illustrations); MELO (2015): 344 (key to genera, diagnosis); MOREIRA et al. (2019): 179, 183, 188, 190 (key to genera, illustrations). Note. HERRERA MADRIGAL (2015) published what was indicated to be the first record of this genus from Colombia, but he was preceded by POLHEMUS & POHEMUS (2014)., Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on page 48, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659, {"references":["DRAKE C. J. & GOMEZ-MENOR J. 1954: A new genus of American Ochteridae (Hemiptera). EOS, Revista Espanola de Entomologia 30: 157 - 159 + pl. X.","BOLIVAR I. 1879: Hemipteros nuevos del Museo de Madrid. Anales de la Sociedad Espanola de Historia Natural 8: 130 - 146.","NIESER N. 1975: The water bugs (Heteroptera: Nepomorpha) of the Guyana region. Studies of the Fauna of Suriname and other Guyanas 16: 1 - 310 + 24 pls.","FROESCHNER R. C. 1981: Heteroptera or true bugs of Ecuador: A partial catalog. Smithsonian Contributions to Zoology 322: 1 - 147.","YAO Y. - ZH., CAI W. - ZH. & REN D. 2007: Pristinochterus gen. n. (Hemiptera: Ochteridae) from the Upper Mesozoic of northeastern China. European Journal of Entomology 104: 827 - 835.","MAZZUCCONI S. A., LOPEZ RUF M. & BACHMANN A. O. 2009: Hemiptera - Heteroptera: Gerromorpha y Nepomorpha. Pp. 167 - 231. In: DOMINGUEZ E. & FERNANDEZ H. R. (eds): Macroinvertebrados bentonicos sudamericanos. Sistematica y biologia. Fundacion Miguel Lillo, Tucuman, 656 pp.","HECKMAN 2011: Encyclopedia of South American aquatic insects: Hemiptera - Heteroptera. Illustrated keys to known families, genera, and species in South America. Springer, Dordrecht, Heidelberg, London, New York, ix + 679 pp.","YAO Y. - ZH., ZHANG W. - T., REN D. & SHIH CH. - K. 2011: New fossil Ochteridae (Hemiptera: Heteroptera: Ochteroidea) from the Upper Mesozoic of north-eastern China, with phylogeny of the family. Systematic Entomology 36: 589 - 600.","POLHEMUS D. A. & POLHEMUS J. T. 2014: Ocyochterus irmae, a beautiful new species of Ochteridae (Heteroptera) from the Northern Andes. Tijdschrift voor Entomologie 157: 163 - 171.","BARBOSA J. F. & RODRIGUES H. D. D. 2015: The true water bugs (Nepomorpha). Pp. 159 - 199. In: PANIZZI A. R. & GRAZIA J. (eds): True bugs (Heteroptera) of the Neotropics. Springer Science + Business Media, Dordrecht, xxii + 901 pp.","MELO M. C. 2015: Ochteroidea. Pp. 341 - 346. In: ROIG-JUNENT S., CLAPS L. E. & MORRONE J. J. (eds): Biodiversidad de Artropodos Argentinos. Vol. 3. Universidad Nacional de Tucuman, Facultad de Ciencias, San Miguel de Tucuman, 546 pp.","MOREIRA F. F. F., RODRIGUES H. D. D., SITES R. W., CORDEIRO I. DA R. S. & MAGALHAES O. M. 2019: Order Hemiptera. Pp. 175 - 216. In: HAMADA N., THORP J. H. & ROGERS D. C. (eds): Thorp and Covich's Freshwater Invertebrates (Fourth Edition). Vol. 3: Keys to Neotropical Hexapoda. Elsevier, 836 pp.","HERRERA MADRIGAL F. 2015: First record of the genus Ocyocherus from Colombia and new records of Ochteridae from Costa Rica (Hemiptera: Heteroptera). Acta Biologica Colombiana 20: 255 - 257."]}

Ƭ Pristinochterus ovatus Yao, Zhang & Ren, 2011 Pristinochterus ovatus Yao, Zhang & Ren, 2011 in YAO et al. (2011): 591– 592 –593, 598 (key to species, original description, illustrations). HOLOTYPE:, CNU-HELB2009096pc (part and counterpart) (CNUB). Type locality and horizon: China: ‘Huangbanjigou, Chaomidian Village, Beipiao City and Dawangzhangzi Village, Lingyuan City, Liaoning Province, Yixian Formation, Early Cretaceous, 125 Ma.’ Pristinochterus ovatus: SCHUH & WEIRAUCH (2020): 152 –153 (list). Distribution. China: Liaoning (Yixian Formation: Early Cretaceous) (YAO et al. 2011). Note. The exact locality of holotype is not mentioned in the original description., Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on page 49, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659, {"references":["YAO Y. - ZH., ZHANG W. - T., REN D. & SHIH CH. - K. 2011: New fossil Ochteridae (Hemiptera: Heteroptera: Ochteroidea) from the Upper Mesozoic of north-eastern China, with phylogeny of the family. Systematic Entomology 36: 589 - 600.","SCHUH R. T. & WEIRAUCH CH. 2020: True bugs of the World (Hemiptera: Heteroptera). Classification and Natural history. Second edition. Monograph Series. Vol. 8. Siri Scientific Press, Manchester, 767 pp + 32 pls."]}

Ochterus africanus Jaczewski, 1938 (Figs 15–17) Ochterus africanus Jaczewski, 1938: 186 –187 (description, differential diagnosis, illustrations). HOLOTYPE (Figs 14 –16): 1 ♀, Central African Republic: ʻFranzösisch Kongo, Fort Crampel’ (ZMUH). Ochterus africanus: KORMILEV (1973): 2 (list, incertae sedis). Distribution. Afrotropical Region: Central African Republic (JACZEWSKI 1938). Note. The photographs of the holotype of O. africanus (Figs 15–17) are presented here for the first time., Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on page 32, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659, {"references":["JACZEWSKI T. 1938: Eine neue Ochteriden-Art aus Africa, nebst faunistischen Angaben ueber einige andere Arten dieser Familie (Heteroptera). Sitzungsberichte der Gesellschaft der Naturforschender Freunde in Berlin 1937: 186 - 187.","KORMILEV N. A. 1973: Ochteridae from Western and Southern Africa (Hemiptera: Heteroptera). Occasional Papers of the California Academy of Sciences 106: 1 - 9."]}

Ochterus monteithorum Baehr, 1990 Ochterus monteithorum Baehr, 1990b:451, 453, 454, 456–459, 461, 468 (key to species, description, illustration). HOLOTYPE:, Australia: Queensland: ʻLeo creek Road, McIllwraith Range, 30 km NE. of Coen, 500 m’ (QMBA). Ochterus monteithorum: CASSIS & GROSS (1995): 260 (catalogue);ANDER- SEN & WEIR (2004): 267–268, 270, 335 (key to species, illustrations, checklist). Distribution. Australian Region: Australia: Queensland (BAEHR 1990 b, ANDERSEN & WEIR 2004)., Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on page 43, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659, {"references":["BAEHR M. 1990 b: Revision of the genus Ochterus Latreille in the Australian Region (Heteroptera: Ochteridae). Entomologica Scandinavica 20: 449 - 477.","CASSIS G. & GROSS G. F. 1995: Hemiptera: Heteroptera (Coleorrhyncha to Cimicomorpha). In: HOUSTON W. W. K. & MAYNARD G. V. (eds): Zoological Catalogue of Australia. Vol. 27.3 A. Melbourne, CSIRO Publishing, xv + 506 pp.","HEBSGAARD M. B., ANDERSEN N. M. & DAMGAARD J. 2004: Phylogeny of the true water bugs (Nepomorpha: Hemiptera-Heteroptera) based on 16 S and 28 S rDNA and morphology. Systematic Entomology 29: 488 - 508."]}

Ochterus barrosoi Gapud, 1981 Ochterus barrosoi Gapud, 1981: 305– 307 –309 (description, differential diagnosis, illustrations). HOLOTYPE:, Philippines: Leyte:‘ Calbiga-a River, Mt Pangasugan’ (UPLB). Ochterus barrosoi: GAPUD (1981): 107 (checklist); CHEN et al. (2005): 413 (checklist). Distribution. Oriental Region: Philippines: Leyte (GAPUD 1981)., Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on page 35, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659, {"references":["GAPUD V. P. 1981: Contribution to the taxonomy of the genus Ochterus Latreille (Hemiptera: Ochteridae). Kalikasan, Philippine Journal of Biology 10 (2 - 3): 300 - 309.","CHEN P. - P., NIESER N. & ZETTEL H. 2005: The aquatic and semi-aquatic bugs (Heteroptera: Nepomorpha & Gerromorpha) of Malesia. Fauna Malesiana Handbook, Vol. 5. Brill, Leiden - Boston, x + 546 pp."]}

Ochterus hungerfordi Schell, 1943 Ochterus americanus (partim, misidentification): UHLER (1876): 336 (specimen from Cuba). Ochterus hungerfordi Schell, 1943a: 32, 35 (key to species, illustration). LECTOTYPE (designated by SCHELL 1943b: 37, as holotype):, Cuba: ‘Mantanzas, Mumuri Valley’ (SEMC). Ochterus hungerfordi: SCHELL (1943b):37 (original description, differential diagnosis); DRAKE (1952): 74 (checklist); ALAYO (1971):4 –5 (key to species); ALAYO (1974): 34 –35 (key to species); HECKMAN (2011): 459 (key to species, illustration). Material examined. CUBA: Sierra Maestra, x.[19]28, 1 ♀, Dr. Rambousek lgt., L. Hoberlandt det., P. Kment revid. (NMPC). Distribution. Neotropical Region: Caribbean Islands: Cuba (SCHELL 1943b; DRAKE 1952; ALAYO 1971, 1974; MUÑOZ RIVIAUX et al. 2010a,b; NARANJO et al. 2010). Note. The revision of American Ochterus including the description of O. hungerfordi was published divided in two parts, the first published in January 1943 (SCHELL 1943a) and the second in April 1943 (SCHELL 1943b). The species was first introduced in the key, which is sufficient to make it available (ICZN 1999: Art. 13.1.1), without any mention of type specimens (SCHELL 1943a: 32), while the original description including the holotype designation appeared in the second part (SCHELL 1943b: 37). As a holotype is defined as ‘the single specimen upon which a new nominal species-group taxon is based in the original publication’ (ICZN 1999: Art. 73.1), in this case, the subsequently designated ‘holotype’ must be considered the lectotype according to ICZN (1999: Art. 74.5)., Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on pages 38-39, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659, {"references":["UHLER P. R. 1876: List of the Hemiptera of the region West of the Mississippi river, including those collected during the Hayden explorations of 1873. Bulletin of the Geological and Geographical Survey of the Territories 1: 269 - 361 + pls. 19 - 21.","SCHELL D. V. 1943 a: The Ochteridae (Hemiptera) of the Western Hemisphere. Journal of the Kansas Entomological Society 16 (1): 29 - 36. [January 1943]","SCHELL D. V. 1943 b: The Ochteridae (Hemiptera) of the Western Hemisphere. Journal of the Kansas Entomological Society 16 (2): 37 - 47. [April 1943]","DRAKE C. J. 1952: Concerning American Ochteridae (Hemiptera). Florida Entomologist 35: 72 - 75.","ALAYO P. D. 1971: Los Hemipteros de Cuba. Adiciones y enmiendas. Trabajos de Divulgacion, Museo \" Felipe Poey \" de la Academia de Ciencias de Cuba 63: 1 - 17.","ALAYO P. D. 1974: Los Hemipteros acuaticos de Cuba. Torreia, Nueva Serie 36: 1 - 64 + 1 table.","HECKMAN 2011: Encyclopedia of South American aquatic insects: Hemiptera - Heteroptera. Illustrated keys to known families, genera, and species in South America. Springer, Dordrecht, Heidelberg, London, New York, ix + 679 pp.","MUNOZ RIVIAUX S., MOREIRA F. F. F. & NARANJO LOPEZ C. 2010 a: Checklist, distribution, and habitat of the semiaquatic and aquatic bugs from Cuba (Hemiptera: Heteroptera: Dipsocoromorpha, Leptopodomorpha, Gerromorpha and Nepomorpha). Zootaxa 2562: 1 - 23.","NARANJO C., RIVIAUX S. M., MOREIRA F. F. F. & COURT R. C. 2010: Taxonomy and distribution of aquatic and semiaquatic Heteroptera (Insecta) from Cuba. Revista de Biologia Tropical 58: 897 - 907.","ICZN 1999: International Code of Zoological Nomenclature. Fourth edition. International Trust for Zoological Nomenclature, London, 306 pp."]}

Ochterus louisiadae Baehr, 1990 Ochterus louisiadae Baehr, 1990b: 451, 453, 455–459, 461, 470 –471 (key to species, description, illustrations). HOLOTYPE:, Papua New Guinea: Rossel Island: ʻSE: Louisiade Archipelago, Yela I., Wo Po River, 400 m’ (BMNH). Ochterus louisiadae: CHEN et al. (2005): 413 (checklist). Distribution. Australian Region: Papua New Guinea: Louisiade Archipelago (BAEHR 1990b, CHEN et al. 2005)., Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on page 39, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659, {"references":["BAEHR M. 1990 b: Revision of the genus Ochterus Latreille in the Australian Region (Heteroptera: Ochteridae). Entomologica Scandinavica 20: 449 - 477.","CHEN P. - P., NIESER N. & ZETTEL H. 2005: The aquatic and semi-aquatic bugs (Heteroptera: Nepomorpha & Gerromorpha) of Malesia. Fauna Malesiana Handbook, Vol. 5. Brill, Leiden - Boston, x + 546 pp."]}

Ochterus bidentatus Schell, 1943 Ochterus bidentatus Schell, 1943a: 32, 35 (key to species, illustration). LECTOTYPE (designated by SCHELL 1943b: 44, as holotype):, Peru: ‘Vic. San Pedro’ (SEMC). Ochterus bidentatus SCHELL (1943b): 44 (original description, differential diagnosis); DRAKE (1952): 74 (checklist); HECKMAN (2011): 462 –463 (key to species, illustration). Distribution. Neotropical Region: South America: Peru (SCHELL 1943b, DRAKE 1952, NIESER & CHEN 1992). Note. The revision of American Ochterus including the description of O. bidentatus was published divided in two parts, the first published in January 1943 (SCHELL 1943a) and the second in April 1943 (SCHELL 1943b). The species was first introduced in the key, which is sufficient to make it available (ICZN 1999: Art. 13.1.1), without any mention of type specimens (SCHELL 1943a: 32), while the original description including the holotype designation appeared in the second part (SCHELL 1943b: 44). As a holotype is defined as ‘the single specimen upon which a new nominal species-group taxon is based in the original publication’ (ICZN 1999: Art. 73.1), in this case, the subsequently designated ‘holotype’ must be considered the lectotype according to ICZN (1999: Art. 74.5)., Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on page 36, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659, {"references":["SCHELL D. V. 1943 a: The Ochteridae (Hemiptera) of the Western Hemisphere. Journal of the Kansas Entomological Society 16 (1): 29 - 36. [January 1943]","SCHELL D. V. 1943 b: The Ochteridae (Hemiptera) of the Western Hemisphere. Journal of the Kansas Entomological Society 16 (2): 37 - 47. [April 1943]","DRAKE C. J. 1952: Concerning American Ochteridae (Hemiptera). Florida Entomologist 35: 72 - 75.","HECKMAN 2011: Encyclopedia of South American aquatic insects: Hemiptera - Heteroptera. Illustrated keys to known families, genera, and species in South America. Springer, Dordrecht, Heidelberg, London, New York, ix + 679 pp.","NIESER N. & CHEN P. - P. 1992: Notes on Gelastocoridae and Ochteridae (Heteroptera) with the description of five new species. Storkia 1: 2 - 13.","ICZN 1999: International Code of Zoological Nomenclature. Fourth edition. International Trust for Zoological Nomenclature, London, 306 pp."]}

Ochterus nicobarensis Chandra & Jehamalar, 2012 Ochterus nicobarensis Chandra & Jehamalar, 2012: 24 –26 (description, illustrations). HOLOTYPE:, India: Nicobar Islands: ‘ Nicobar District, Great Nicobar Biosphere Reserve, Campbell Bay, Govind Nagar, Ring Road, attracted to light near a pond 0.5 km away from sea, 40 ft. [12 m a.s.l.], 7°00.075′N 93°54.594′E’ (NZSI). Material examined. MYANMAR: Burma, Rangoon Distr., Hlegu – Goygon, v. 1997, 1 1 ♀, M. Klícha lgt., P. Kment det. (ZJPC). Distribution. Oriental Region: India: Nicobar Islands (CHANDRA & JEHAMALAR 2012); Myanmar (new record)., Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on page 43, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659, {"references":["CHANDRA K. & JEHAMALAR E. E. 2012: Ochterus nicobarensis sp. nov. from Great Nicobar Biosphere Reserve, Andaman and Nicobar Islands, India (Hemiptera: Heteroptera: Ochteridae). Acta Entomologica Musei Nationalis Pragae 52: 23 - 28."]}

Ochterus atridermis Baehr, 1989 Ochterus atridermis Baehr, 1989: 114, 116, 118, 122 –123 (key to species, description, illustrations). HOLOTYPE:, Australia: Queensland: ʻBeerway [= Beerwah], S. E. Qlnd. ’ (QMBA). Ochterus atridermis: BAEHR (1990b): 18, 453–454, 456, 459, 461, 467 (key to species, redescription, illustrations). Ochterus atridermis: CASSIS & GROSS (1995): 260 (catalogue); ANDERSEN & WEIR (2004): 268, 335 (key to species, checklist). Distribution. Australian Region: Australia: Northern Territory (BAEHR 1989, ANDERSEN & WEIR 2004), Queensland (BAEHR 1989, ANDERSEN & WEIR 2004)., Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on page 34, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659, {"references":["BAEHR M. 1989: Review of the Australian Ochteridae (Insecta, Heteroptera). Spixiana 11: 111 - 126.","BAEHR M. 1990 b: Revision of the genus Ochterus Latreille in the Australian Region (Heteroptera: Ochteridae). Entomologica Scandinavica 20: 449 - 477.","CASSIS G. & GROSS G. F. 1995: Hemiptera: Heteroptera (Coleorrhyncha to Cimicomorpha). In: HOUSTON W. W. K. & MAYNARD G. V. (eds): Zoological Catalogue of Australia. Vol. 27.3 A. Melbourne, CSIRO Publishing, xv + 506 pp.","ANDERSEN N. M. & WEIR T. A. 2004: Australian water bugs. Their biology and identification (Hemiptera-Heteroptera, Gerromorpha & Nepomorpha). Entomograph Vol. 14. Apollo Books, Stenstrup & CSIRO Publishing, Collingwood, 344 pp."]}

Ochterus papaceki Kment & Carapezza sp. nov. Ochterus papaceki Kment & Carapezza, sp. nov. (original description, illustrations). HOLOTYPE:, Yemen: Socotra Island: ‘ Noged plain, lower part of Wadi Matyaf, 12°27ʹ13.50ʺN 54°18ʹ13.95ʺE’ (NMPC). Distribution. Afrotropical Region: Tanzania; Yemen: Socotra (this paper)., Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on page 44, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659

Genus Ƭ Floricaudus Yao, Ren & Shih, 2011 Floricaudus Yao, Ren & Shih, 2011 in YAO et al. (2011): 590, 593 –594, 597–598 (key to genera, original description, phylogeny). Type species: Floricaudus multilocellus Yao, Ren & Shih, 2011, by original designation., Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on page 49, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659, {"references":["YAO Y. - ZH., ZHANG W. - T., REN D. & SHIH CH. - K. 2011: New fossil Ochteridae (Hemiptera: Heteroptera: Ochteroidea) from the Upper Mesozoic of north-eastern China, with phylogeny of the family. Systematic Entomology 36: 589 - 600."]}

Ochterus banksi Barber, 1913 Ochterus banksi Barber, 1913: 213– 214 –215 (key to species, original description, illustration). SYNTYPES: 3 1 ♀, USA: Virginia: ‘at Glencarlyn’ (coll. N. Banks + AMNH). Ochterus banksi: VAN DUZEE (1917): 476 (catalogue); HUNGERFORD (1919): 51 –53 (key to species, original description repeated); BLAT- CHLEY (1926): 1020–1021 (key to species, redescription); SCHELL (1943a): 32, 35 (key to species, illustration); DRAKE (1943b): 45 (original description repeated, differential diagnosis); BOBB (1951): 93 –100 (redescription, description of egg and larval instars I–V, biology, ecology); DRAKE (1952): 74 (checklist); CHAPMAN (1958): 119 –120 (key to species); WILSON (1958): 154 (key to species); BOBB (1971): 17–20 (key to species, redescription, larval instars, illustrations); POLHEMUS & POLHEMUS (1988a): 542 (catalogue); EPLER (2006): 12.1–12.4 (key to species, variability, illustrations); HOFFMAN (2012): 59 (illustration, distribution); POLHEMUS & POLHEMUS (2016): 11, 13, 17, 26–30 (key to species, redescription, illustrations, new synonymy). Ochterus banksii (incorrect subsequent spelling): HECKMAN (2011): 463 (key to species, illustration). Ochterus flaviclavus Barber, 1913: 213, 215 (key to species, original description). HOLOTYPE:, USA: Florida: ‘Ormond’ (coll. Barber + USNM). Junior subjective synonym, suggested by EPLER (2006: 12.4), confirmed by POLHEMUS & POLHEMUS (2016: 26). Ochterus flaviclavus: VAN DUZEE (1917): 476 (catalogue); HUNGERFORD (1919): 51 –52 (key to species, original description repeated); BLAT- CHLEY (1926): 1020, 1022 (key to species, redescription); SCHELL (1943a): 32, 35 (key to species, illustration); SCHELL (1943b): 40 –41 (original description repeated, differential diagnosis); DRAKE (1952): 74 (checklist); CHAPMAN (1958):119 –120 (key to species); POLHEMUS & POLHEMUS (1988a): 542 (catalogue); EPLER (2006): 12.3–12.4 (key to species, taxonomy, illustrations); HECKMAN (2011): 460 (key to species, illustration). Material examined. USA: ILLINOIS : Union Co., Pine Hills 3, 10.viii.1984, J. E. McPherson, R. J. Packauskas & T. E.Vogt lgt., Z.Jindra det., P. Kment revid. (ZJPC). NEW YORK : White Plains, 15.xii.[19]17, 1, JRTB Collr [= J. R. Torre Bueno lgt.], C. J. Drake det. (NMPC). Distribution. Nearctic Region: USA: Connecticut (POLHE- MUS & POLHEMUS 2016), Florida (DRAKE 1913, 1914; BLAT- CHLEY 1926, both as O. flaviclavus; SCHELL 1943b; DRAKE 1952; CHAPMAN 1958; POLHEMUS & POLHEMUS 1988a, 2016; EPLER 2006), Illinois (TINERELLA et al. 2009), Indiana (BLAT- CHLEY 1926; POLHEMUS & POLHEMUS 1988a), Kansas (POLHE- MUS & POLHEMUS 1988, as O. flaviclavus; 2016), Louisiana (POLHEMUS & POLHEMUS 1988a, as O. flaviclavus; 2016), Maryland (POLHEMUS & POLHEMUS 2016), Massachusetts (DRAKE 1952, POLHEMUS & POLHEMUS 1988a), Michigan (POLHEMUS & POLHEMUS 2016), Mississippi (DRAKE 1952; WILSON 1958; POLHEMUS & POLHEMUS 1988a, 2016); New Jersey (SCHELL 1943b, DRAKE 1952, POLHEMUS & POLHEMUS 1988a), New York (BLATCHLEY 1926, LEONARD 1928, SCHELL 1943b, DRAKE 1952, POLHEMUS & POLHEMUS 1988a), Ohio (POLHEMUS & POLHEMUS 2016), Pennsylvania (POLHEMUS & POLHEMUS 2016), South Carolina (BOBB 1951, POLHEMUS & POLHEMUS 1988a), Texas (POLHEMUS & POLHEMUS 1988a, 2016; POLHEMUS 1997; EPLER 2006), Virginia (BARBER 1913; BLATCHLEY 1926; SCHELL 1943b; DRAKE 1952; BOBB 1951, 1974; POLHEMUS & POLHEMUS 1988a, 2016; HOFFMAN 2012), West Virginia (POLHEMUS & POLHEMUS 2016). Note. BARBER (1913) described the species based on a single male from the collection of Mrs. Annie Trumbull Slosson. Later, SCHELL (1943b) mentioned that the holotype was deposited in Barber’s collection. Currently it is deposited in USNM (T. Henry, pers. comm.)., Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on page 35, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659, {"references":["BARBER H. G. 1913. Description of two new species of Ochterus Latr. (Hemiptera) with an arrangement of the North American species. Canadian Entomologist 45: 213 - 215.","VAN DUZEE E. P. 1917: Catalogue of the Hemiptera of America North of Mexico excepting the Aphididae, Coccididae and Aleurodidae. In: WOODWORTH C. W. (ed.): University of California Publications in Entomology, Vol. 2. University of California Press, Berkeley, xiv + 902 pp.","HUNGERFORD H. B. 1919: The biology and ecology of aquatic and semiaquatic Hemiptera. Kansas University Science Bulletin 11: i-iii (colour pls) + 3 - 328 + 337 - 341 (index).","SCHELL D. V. 1943 a: The Ochteridae (Hemiptera) of the Western Hemisphere. Journal of the Kansas Entomological Society 16 (1): 29 - 36. [January 1943]","BOBB M. L. 1951: Life history of Ochterus banksi Barber (Hemiptera: Ochteridae). Bulletin of the Brooklyn Entomological Society 46: 92 - 100.","DRAKE C. J. 1952: Concerning American Ochteridae (Hemiptera). Florida Entomologist 35: 72 - 75.","CHAPMAN H. C. 1958: Notes on the identity, habitat and distribution of some semi-aquatic Hemiptera of Florida. Florida Entomologist 41: 117 - 124.","WILSON C. A. 1958: Aquatic and semiaquatic Hemiptera of Mississippi. Tulane Studies in Zoology 6: 115 - 170.","POLHEMUS D. A. & POLHEMUS J. T. 1988 a: Family Ochteridae Kirkaldy, 1906. The Velvety Shore Bugs. Pp. 541 - 543. In: HENRY T. J. & FROESCHNER R. C. (eds): Catalog of the Heteroptera, or True Bugs, of Canada and the Continental United States. E. J. Brill, Leiden, New York, Kobenhavn, Koln, xix + 958 pp.","EPLER J. H. 2006: Identification manual for the aquatic and semi-aquatic Heteroptera of Florida (Belostomatidae, Corixidae, Gelastocoridae, Gerridae, Hebridae, Hydrometridae, Mesoveliidae, Naucoridae, Nepidae, Notonectidae, Ochteridae, Pleidae, Saldidae, Veliidae). Florida Department of Environmental Protection, Tallahassee, 194 pp.","HOFFMAN R. L. 2012: Velvety Shore Bugs in Virginia (Heteroptera: Ochteridae). Banisteria 40: 58 - 60.","POLHEMUS D. A. & POLHEMUS J. T. 2016: Revision of the genus Ochterus (Hemiptera: Heteroptera: Ochteridae) in Mesoamerica and the United States. Tijdschrift voor Entomologie 159: 9 - 75.","HECKMAN 2011: Encyclopedia of South American aquatic insects: Hemiptera - Heteroptera. Illustrated keys to known families, genera, and species in South America. Springer, Dordrecht, Heidelberg, London, New York, ix + 679 pp.","SCHELL D. V. 1943 b: The Ochteridae (Hemiptera) of the Western Hemisphere. Journal of the Kansas Entomological Society 16 (2): 37 - 47. [April 1943]","TINERELLA P. P., TAYLOR S. J. & MCPHERSON J. E. 2009: New records and a checklist of aquatic true bugs (Heteroptera: Nepomorpha) from Illinois. Journal of the Kansas Entomological Society 82: 293 - 299.","BLATCHLEY W. S. 1926: Heteroptera or true bugs of Eastern North America with especial reference to the faunas of Indiana and Florida. Nature Publishing Company, Indianapolis, 1116 pp.","LEONARD M. D. 1928: A list of the insects of New York. With a list of the spiders and certain other allied groups. Cornell University, Agricultural Experiment Station, Memoir 101: 1 - 1121.","POLHEMUS J. T. 1997: New state and U. S. records and other distributional notes for Heteroptera (Insecta). Entomological News 108: 305 - 310.","BOBB M. L. 1974: The aquatic and semi-aquatic Hemiptera of Virginia. The Insects of Virginia. No. 7. Virginia Polytechnic Institute and State University, Research Division Bulletin 87: i-iv + 1 - 195."]}

Ochterus surigaoensis Gapud, 1995 Ochterus surigaoensis Gapud, 1995: 42 –43 (description, differential diagnosis, illustrations). HOLOTYPE:, Philippines: Mindanao:‘ Mendozana Falls, Bislig, Surigao del Sur’ (UPLB). Ochterus surigaoensis: GAPUD (2003):107 (checklist); CHEN et al. (2005): 413 (checklist). Distribution. Oriental Region: Philippines: Mindanao (GAPUD 1995)., Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on page 47, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659, {"references":["GAPUD V. P. 1995: A new species of Ochterus Latreille (Hemiptera: Ochteridae) from the Philippines. Asia Life Sciences 4 (1): 41 - 44.","GAPUD V. P. 2003: Two new Philippine Ochterus Latreille (Insecta: Heteroptera: Ochteridae) and checklist of Philippine species. Annalen des Naturhistorischen Museums in Wien, Serie B 104 [2002]: 99 - 108.","CHEN P. - P., NIESER N. & ZETTEL H. 2005: The aquatic and semi-aquatic bugs (Heteroptera: Nepomorpha & Gerromorpha) of Malesia. Fauna Malesiana Handbook, Vol. 5. Brill, Leiden - Boston, x + 546 pp."]}

Ochterus luzonicus Gapud, 2003 Ochterus baltazarae (partim, paratypes of Zambales form): GAPUD & SAN VALENTIN (1977): 280, 282–283, 296–298 (diagnosis, illustrations). Ochterus luzonicus Gapud, 2003: 100 –103, 107. HOLOTYPE:, Philippines: Luzon: ‘ La Union: Bacnotan, Don Mariano Marcos Memorial State University’ (VPGP). Ochterus luzonicus: CHEN et al. (2005): 413 (checklist). Distribution. Oriental Region: Philippines: Luzon (GAPUD 2003)., Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on page 39, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659, {"references":["GAPUD V. P. 2003: Two new Philippine Ochterus Latreille (Insecta: Heteroptera: Ochteridae) and checklist of Philippine species. Annalen des Naturhistorischen Museums in Wien, Serie B 104 [2002]: 99 - 108.","GAPUD V. P. & SAN VALENTIN H. O. 1977: The Ochteridae (Hemiptera) of the Philippines. Kalikasan, Philippine Journal of Biology 6 (3): 269 - 300.","CHEN P. - P., NIESER N. & ZETTEL H. 2005: The aquatic and semi-aquatic bugs (Heteroptera: Nepomorpha & Gerromorpha) of Malesia. Fauna Malesiana Handbook, Vol. 5. Brill, Leiden - Boston, x + 546 pp."]}

Genus Ƭ Pristinochterus Yao, Cai & Ren, 2007 Pristinochterus Yao, Cai & Ren, 2007: 827 –830 (key to genera, original description, differential table). Type species: Pristinochterus zhangi Yao, Cai & Ren, 2007, by original designation. Pristinochterus: YAO et al. (2011):590, 592–593,597–598 (key to genera, revision, phylogeny).

Ochterus brunneus Hungerford, 1927 Ochterus brunneus Hungerford, 1927: 188 –189 (description, differential diagnosis). SYNTYPES: 2, Bolivia: ‘Huachi Rio Beni’ (USNM). Ochterus brunneus: SCHELL (1943a): 32, 35 (key to species, illustration), SCHELL (1943b): 41 (original description repeated, differential diagnosis); DRAKE (1952): 74 (checklist); HECKMAN (2011): 461 (key to species, illustration). (1 1 ♀ MMBC, 1 NMPC); NE,Ankarafantsika N.P., 22.–24.iv.2011, ca. 100 m a.s.l., sweeping close to main entrance, 1, P. Baňař lgt., P. Kment det. (MMBC). MOZAMBIQUE: CW, 30 km NE Guro, 17°14′S 33°27′E, 620 m a.s.l., 11.xii.2005, 1 1 ♀, J. Halada lgt., P. Kment det. (MMBC). SOUTH SUDAN: UPPER NILE : near Malakal, 5.–20.i. 1963, 1 1 ♀, R. E. Linnavuori lgt., P. Kment det. (ACPI). SUDAN: BLUE NILE : Blue Nile Prov., Ed Damazin [= Ad-Damazin], 2.xii.1967, 1 5 ♀♀ (Fig. 19), P. Štys lgt. (1169), P. Kment det. (1 4 ♀♀ MMBC, 1 ♀ NMPC). SENNAR : Blue Nile prov., Dinder Game Reserve, Galegu, 28.ii.1967, 4 4 ♀♀, P. Štys lgt. (653), P. Kment det. (3 3 ♀♀ MMBC, 1 1 ♀ NMPC); same locality, 4.iii.1967, 4 6 ♀♀, P. Štys lgt. (686), P. Štys det. as O. marginatus caffer, P. Kment revid. (3 5 ♀♀ MMBC, 1 1 ♀ NMPC). Distribution. Afrotropical Region: Benin (KORMILEV 1973); Burkina Faso (LINNAVUORI 1981); Cameroon (POISSON 1948); Cape Verde Islands: Santiago Island (MANCINI 1939a); Central African Republic (LINNAVUORI 1981); Chad (LINNAVUORI 1981); Democratic Republic of the Congo (POISSON 1949, 1968b; POISSON & SALLIER DUPIN 1969); Ethiopia (DE CARLINI 1895, MANCINI 1956); Gambia (NIESER & CHEN 1992); Guinea (POISSON 1954, BERTRAND 1962); Ivory Coast (POISSON 1968a); Kenya (JACZEWSKI 1934); Madagascar (POLHEMUS & POLHEMUS 2008); Mozambique (new record); Nigeria (JACZEWSKI 1934, LINNAVUORI 1981); Republic of the Congo (BERTRAND 1962); São Tomé and Príncipe: Príncipe Island (MANCINI 1939a); Senegal (NIESER & CHEN 1992); Sierra Leone (JACZEWSKI 1934); Somalia (MANCINI 1939a,b; LINNAVUORI 1982); South Africa (STÅL 1855, JACZEWSKI 1934, KORMILEV 1973); South Sudan (LINNAVUORI 1971, 1980); Sudan (new record); Tanzania (JACZEWSKI 1934)., Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on pages 36-37, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659, {"references":["HUNGERFORD H. B. 1927: A report upon the aquatic and semi-aquatic Hemiptera of the Mulford Biological Expedition to Bolivia, South- - America, 1921 - 22. Proceedings of the Entomomological Society of America 29: 187 - 190 + pl. 10.","SCHELL D. V. 1943 a: The Ochteridae (Hemiptera) of the Western Hemisphere. Journal of the Kansas Entomological Society 16 (1): 29 - 36. [January 1943]","SCHELL D. V. 1943 b: The Ochteridae (Hemiptera) of the Western Hemisphere. Journal of the Kansas Entomological Society 16 (2): 37 - 47. [April 1943]","DRAKE C. J. 1952: Concerning American Ochteridae (Hemiptera). Florida Entomologist 35: 72 - 75.","HECKMAN 2011: Encyclopedia of South American aquatic insects: Hemiptera - Heteroptera. Illustrated keys to known families, genera, and species in South America. Springer, Dordrecht, Heidelberg, London, New York, ix + 679 pp.","STAL C. 1855: Hemiptera fran Kafferlandet. Ofversigt af Kongliga Vetenskaps-Akademiens Forhandlingar 12: 27 - 47.","KORMILEV N. A. 1973: Ochteridae from Western and Southern Africa (Hemiptera: Heteroptera). Occasional Papers of the California Academy of Sciences 106: 1 - 9.","LINNAVUORI R. E. 1981: Hemiptera of Nigeria, with remarks on some species of the adjacent countries. 1. The aquatic and subaquatic families, Saldidae and Leptopodidae. Acta Entomologica Fennica 37: 1 - 39.","MANCINI C. 1939 a: Osservazioni sugli Ochterus del Museo Civico di Storia Naturale di Genova (hemipt.). Bollettino della Societa Entomologica Italiana 67: 123 - 126.","POISSON R. A. 1949: Hemipteres aquatiques. Parc National Albert, I. Mission G. F. de Witte (1933 - 1935) 58: 3 - 94.","POISSON R. A. 1968 b: Aquatic Heteroptera. In: SYMOENS J. - J. (ed.): Hydrobiological survey of the Lake Bangweulu, Luapula River Basin. Volume XIV, fascicule 11. Cercle Hydrobiologique de Bruxelles, Bruxelles, 51 pp.","POISSON R. A. & SALLIER DUPIN F. DE 1969: Aquatic Heteroptera from the Luanza Drainage Area. In: SYMOENS J. - J. (ed.): Hydrobiological survey of the Lake Bangweulu, Luapula River Basin. Volume XIV, fascicule 12. Cercle Hydrobiologique de Bruxelles, Bruxelles, 26 pp + 2 pls.","CARLINI A. DE 1895: VII. Rincoti. In: Esplorazione del Giuba e dei suoi affluenti compiuta dal Cap. V. Bottego durante gli anni 1892 - 93 sotto gli auspici della Societa Geografica Italiana. Annali del Museo Civico di Storia Naturale di Genova, Serie 2 15: 103 - 125.","MANCINI C. 1956: Emitteri dell'Abissinia raccolti dal M. se Saverio Patrizi e da altri. Fragmenta Entomologica 2: 65 - 96.","NIESER N. & CHEN P. - P. 1992: Notes on Gelastocoridae and Ochteridae (Heteroptera) with the description of five new species. Storkia 1: 2 - 13.","POISSON R. A. 1954: XXX. Hydrocorises (2 e contribution) (Mission Lamotte et Roy, juillet-decembre 1951). In: La Reserve Naturelle Integrale du Mt Nimba. Fascicule II. Memoires de l'Institut Francais d ' Afrique Noire 40: 359 - 370.","BERTRAND H. 1962: Mission H. Bertrand (1956 - 1957) en Afrique occidentale et equatoriale. Hydrocorises. Bulletin de l'Institut Francais d'Afrique Noire, Serie A 34: 880 - 885.","POISSON R. A. 1968 a: Contributions a la connaissance de la faune entomologique de la Cote d'Ivoire (J. Decelle 1961 - 1964). Annales de Musee Royal de l ' Afrique Centrale, Serie in- 8 °, Sciences Zoologiques 165: 399 - 403.","JACZEWSKI T. 1934: Notes on the Old World species of Ochteridae (Heteroptera). Annals and Magazine of Natural History, Series 10 13: 597 - 613.","POLHEMUS D. A. & POLHEMUS J. T. 2008: A new Indian Ocean species of Ochterus from the island of Mauritius (Hemiptera: Heteroptera: Ochteridae). Acta Entomologica Musei Nationalis Pragae 48: 281 - 288.","LINNAVUORI R. E. 1982: Some Hemipterous fauna from Somalia and Ethiopia. Monitore Zoologico Italiano 16 (Suppl.): 1 - 33.","LINNAVUORI R. E. 1971: Hemiptera of the Sudan, with remarks on some species of the adjacent countries. 1. The aquatic and subaquatic families. Annales Zoologici Fennici 8: 340 - 366.","LINNAVUORI R. E. 1980: Hemiptera of the Sudan, with remarks on some species of the adjacent countries. 8. Additiones and correctiones. Biogeography. Acta Entomologica Fennica 36: 1 - 53."]}

Genus Ƭ Angulochterus Yao, Zhang & Ren, 2011 Angulochterus Yao, Zhang & Ren, 2011 in YAO et al. (2011): 590, 595 –598 (key to genera, original description, phylogeny). Type species: Angulochterus quadrimaculatus Yao, Ren & Shih, 2011, by original designation.

Megochterus nasutus (Montandon, 1898) Pelogonus nasutus Montandon, 1898: 72–73 (original description, differential diagnosis). LECTOTYPE: ♀ (designated by BAEHR 1990a: 198), ʻAustralia’ (MNHN). Megochterus nasutus: JACZEWSKI (1934):610 –613 (redescription, illustrations); JACZEWSKI (1935): 482 (key to species); KORMILEV (1971): 434, 443–444 (partim, specimens from Queensland; redescription, illustrations); BAEHR (1990a):198 –201 (key to species, redescription, illustrations, lectotype designation); CASSIS & GROSS (1995): 259 (catalogue); ANDERSEN & WEIR (2004):264 –265, 335 (key to species, illustrations, checklist); CHEN et al. (2005): 80 (illustration); POPOV & HEISS (2014a): 188 (illustration). Distribution. Australian Region: Australia: New South Wales (BAEHR 1990a), Queensland (KORMILEV 1971; BAEHR 1989, 1990a; ANDERSEN & WEIR 2004), South Australia (ANDERSEN & WEIR 2004), Tasmania (BAEHR 1990a, AN- DERSEN & WEIR 2004)., Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on page 30, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659, {"references":["MONTANDON A. L. 1898: Hemipteres Heteropteres nouveaux des collections du Museum de Paris. Bulletin du Museum d'Histoire Naturelle (Paris) 4: 72 - 75.","BAEHR M. 1990 a: Revision of the genus Megochterus Jaczewski (Insecta: Heteroptera: Ochteridae). Invertebrate Taxonomy 4: 197 - 203","JACZEWSKI T. 1934: Notes on the Old World species of Ochteridae (Heteroptera). Annals and Magazine of Natural History, Series 10 13: 597 - 613.","JACZEWSKI T. 1935: Die Uferwanzen (Heteroptera: Fam. Leptopodidae, Acanthiidae, Ochteridae und Mononychidae) der Deutschen Limnologischen Sunda-Expedition. Archiv fur Hydrobiologie, Suppl. - Band XIII ' Tropische Binnengewasser' 5: 474 - 483.","KORMILEV N. A. 1971: Ochteridae from the Oriental and Australian Regions (Hemiptera-Heteroptera). Pacific Insects 13: 429 - 444.","CASSIS G. & GROSS G. F. 1995: Hemiptera: Heteroptera (Coleorrhyncha to Cimicomorpha). In: HOUSTON W. W. K. & MAYNARD G. V. (eds): Zoological Catalogue of Australia. Vol. 27.3 A. Melbourne, CSIRO Publishing, xv + 506 pp.","ANDERSEN N. M. & WEIR T. A. 2004: Australian water bugs. Their biology and identification (Hemiptera-Heteroptera, Gerromorpha & Nepomorpha). Entomograph Vol. 14. Apollo Books, Stenstrup & CSIRO Publishing, Collingwood, 344 pp.","CHEN P. - P., NIESER N. & ZETTEL H. 2005: The aquatic and semi-aquatic bugs (Heteroptera: Nepomorpha & Gerromorpha) of Malesia. Fauna Malesiana Handbook, Vol. 5. Brill, Leiden - Boston, x + 546 pp.","POPOV YU. A. & HEISS E. 2014 a: Riegerochterus baehri gen. nov. and spec. nov., the first fossil velvety bug (Hemiptera: Heteroptera, Ochteridae) from Dominican Amber. Andrias 20: 185 - 190.","BAEHR M. 1989: Review of the Australian Ochteridae (Insecta, Heteroptera). Spixiana 11: 111 - 126."]}

Ochterus parvus Schell, 1943 (Fig. 24) Ochterus parvus Schell, 1943a: 32, 35 (key to species, illustration). LECTOTYPE (designated by SCHELL 1943b: 40, as holotype):, Ecuador: ‘Mera’ (SEMC). Ochterus parvus: SCHELL (1943b): 39 –40 (original description, differential diagnosis); DRAKE (1952): 74 (checklist); FROESCHNER (1981): 61 (catalogue); HECKMAN (2011): 460 (key to species, illustration); CIANFERONI (2012): 67 (key to species). Material examined. ECUADOR: NAPO : 7.5 km SE of Archidona, San Pablo de Ushpayacu env., 0°56′52″S 77°45′01″W, 540 m a.s.l., 23.xi.2006, 1 ♀ (Fig. 24), M. Fikáček lgt., P. Kment det. (NMPC). Distribution. Neotropical Region: South America: Ecuador (SCHELL 1943b, DRAKE 1952, CIANFERONI 2012). Note. The revision of American Ochterus including the description of O. parvus was published divided in two parts, the first published in January 1943 (SCHELL 1943a) and the second in April 1943 (SCHELL 1943b). The species was first introduced in the key, which is sufficient to make it available (ICZN 1999: Art. 13.1.1), without any mention of type specimens (SCHELL 1943a: 32), while the original description including the holotype designation appeared in the second part (SCHELL 1943b: 39). As a holotype is defined as ‘the single specimen upon which a new nominal species-group taxon is based in the original publication’ (ICZN 1999: Art. 73.1), in this case, the subsequently designated ‘holotype’ must be considered the lectotype according to ICZN (1999: Art. 74.5). Ochterus paucistriatus Baehr, 1990 Ochterus paucistriata Baehr, 1990b: 450, 453, 454, 456–459, 461, 468 ‒469 (key to species, description, illustrations). HOLOTYPE:, Indonesia: Papua:ʻDutch New Guinea: Cyclops Mts., Mt.Lina, 3500 ft. [= 1067 m a.s.l.]’ (BMNH). Ochterus paucistriata: CHEN et al. (2005): 413 (checklist). Distribution. Australian Region: Indonesia: Papua (BAEHR 1990b, CHEN et al. 2005) Note. BAEHR (1990b) established the species name as O. paucistriata, citing it 11 times throughout the paper, but without providing any explanation of its etymology. CHEN et al. (2005) also accepted O. paucistriata as the correct original spelling. However, the species name is a compo- sed Latin adjective paucistriatus (- a, - um) and the generic name Ochterus is masculine. Therefore, we correct here the gender agreement of the name to O. paucistriatus (see ICZN 1999: Art. 31.2, 34.2)., Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on pages 44-45, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659, {"references":["SCHELL D. V. 1943 a: The Ochteridae (Hemiptera) of the Western Hemisphere. Journal of the Kansas Entomological Society 16 (1): 29 - 36. [January 1943]","SCHELL D. V. 1943 b: The Ochteridae (Hemiptera) of the Western Hemisphere. Journal of the Kansas Entomological Society 16 (2): 37 - 47. [April 1943]","DRAKE C. J. 1952: Concerning American Ochteridae (Hemiptera). Florida Entomologist 35: 72 - 75.","FROESCHNER R. C. 1981: Heteroptera or true bugs of Ecuador: A partial catalog. Smithsonian Contributions to Zoology 322: 1 - 147.","HECKMAN 2011: Encyclopedia of South American aquatic insects: Hemiptera - Heteroptera. Illustrated keys to known families, genera, and species in South America. Springer, Dordrecht, Heidelberg, London, New York, ix + 679 pp.","CIANFERONI F. 2012. The Ochteridae of Ecuador, with new records and an identification key (Hemiptera: Heteroptera: Nepomorpha). Zootaxa 3260: 62 - 68.","ICZN 1999: International Code of Zoological Nomenclature. Fourth edition. International Trust for Zoological Nomenclature, London, 306 pp.","BAEHR M. 1990 b: Revision of the genus Ochterus Latreille in the Australian Region (Heteroptera: Ochteridae). Entomologica Scandinavica 20: 449 - 477.","CHEN P. - P., NIESER N. & ZETTEL H. 2005: The aquatic and semi-aquatic bugs (Heteroptera: Nepomorpha & Gerromorpha) of Malesia. Fauna Malesiana Handbook, Vol. 5. Brill, Leiden - Boston, x + 546 pp."]}

Ochterus brachysoma Rieger, 1977 Ochterus brachysoma Rieger, 1977: 214 –215 (description, differential diagnosis, illustrations). HOLOTYPE:, Australia: Queensland:‘ Stewart River, Cope [= Cape] York Peninsula, North Queensland’ (CRNG). Ochterus brachysoma: BAEHR (1989): 114, 116, 118, 121–122 (key to species, redescription, illustrations); BAEHR (1990b): 450, 453, 455, 456, 459, 461, 472–473 (key to species, redescription, illustrations); CASSIS & GROSS (1995): 261 (catalogue); ANDERSEN & WEIR (2004): 267, 270, 335 (key to species, illustrations, checklist). Distribution. Australian Region: Australia: Queensland (RIEGER 1977; BAEHR 1989, 1990b; ANDERSEN & WEIR 2004). Distribution. Neotropical Region: South America: Bolivia (HUNGERFORD 1927, DRAKE 1952)., Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on page 36, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659, {"references":["RIEGER CH. 1977: Neue Ochteridae aus der Alten Welt. Deutsche Entomologische Zeitschrift, Neue Folge 24: 213 - 217.","BAEHR M. 1989: Review of the Australian Ochteridae (Insecta, Heteroptera). Spixiana 11: 111 - 126.","BAEHR M. 1990 b: Revision of the genus Ochterus Latreille in the Australian Region (Heteroptera: Ochteridae). Entomologica Scandinavica 20: 449 - 477.","CASSIS G. & GROSS G. F. 1995: Hemiptera: Heteroptera (Coleorrhyncha to Cimicomorpha). In: HOUSTON W. W. K. & MAYNARD G. V. (eds): Zoological Catalogue of Australia. Vol. 27.3 A. Melbourne, CSIRO Publishing, xv + 506 pp.","ANDERSEN N. M. & WEIR T. A. 2004: Australian water bugs. Their biology and identification (Hemiptera-Heteroptera, Gerromorpha & Nepomorpha). Entomograph Vol. 14. Apollo Books, Stenstrup & CSIRO Publishing, Collingwood, 344 pp.","HUNGERFORD H. B. 1927: A report upon the aquatic and semi-aquatic Hemiptera of the Mulford Biological Expedition to Bolivia, South- - America, 1921 - 22. Proceedings of the Entomomological Society of America 29: 187 - 190 + pl. 10.","DRAKE C. J. 1952: Concerning American Ochteridae (Hemiptera). Florida Entomologist 35: 72 - 75."]}

Ochterus seychellensis D. A. Polhemus, 1992 Ochterus seychellensis D. A. Polhemus, 1992a: 418– 422 (description, illustrations). HOLOTYPE:, Seychelles: Mahé: ‘ Mahe, seeping rock faces along Foret Noire road near Congo Rouge trailhead, 390 m’ (USNM). Ochterus seychellensis: POLHEMUS & POLHEMUS (2008): 284, 286 (illustration, key to species); POLHEMUS & POLHEMUS (2013): 94 –95 (diagnosis, illustrations). Distribution. Afrotropical Region: Seychelles: Mahé (POLHEMUS 1992 a, POLHEMUS & POLHEMUS 2013)., Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on page 47, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659, {"references":["POLHEMUS D. A. 1992 a: The first records of the families Ochteridae and Hebridae (Heteroptera) from the granitic Seychelles, with descriptions of two new species. Journal of the New York Entomological Society 100: 418 - 423.","POLHEMUS D. A. & POLHEMUS J. T. 2008: A new Indian Ocean species of Ochterus from the island of Mauritius (Hemiptera: Heteroptera: Ochteridae). Acta Entomologica Musei Nationalis Pragae 48: 281 - 288.","POLHEMUS D. A. & POLHEMUS J. T. 2013: Aquatic and semi-aquatic Heteroptera. Pp. 67 - 100. In: GERLACH J. (ed.): Odonata, Hemiptera, Hymenoptera and other insects of the Seychelles islands. Siri Scientific Press, Manchester, 396 pp. + 4 pls."]}

Ochterus tenebrosus Nieser, 1975 Ochterus tenebrosus Nieser, 1975: 26, 29 –31, Pl. 2c (key to species, description, illustration). HOLOTYPE:, Suriname: ʻMarowijne, road Albinga-Moengo’ (RMNH). Ochterus tenebrosus: HECKMAN (2011):462 (key to species, illustration); MOREIRA et al. (2011): 58 (checklist, Brazil); CORDEIRO et al. (2014): 67 (key to species, illustration). Distribution. Neotropical Region: South America: Brazil: Amazonas (PEREIRA & MELO 2007, MOREIRA et al. 2011, CORDEIRO et al. 2014); Suriname (NIESER 1975)., Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on page 47, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659, {"references":["NIESER N. 1975: The water bugs (Heteroptera: Nepomorpha) of the Guyana region. Studies of the Fauna of Suriname and other Guyanas 16: 1 - 310 + 24 pls.","HECKMAN 2011: Encyclopedia of South American aquatic insects: Hemiptera - Heteroptera. Illustrated keys to known families, genera, and species in South America. Springer, Dordrecht, Heidelberg, London, New York, ix + 679 pp.","MOREIRA F. F. F., BARBOSA J. F., RIBEIRO J. R. I. & ALECRIM V. P. 2011: Checklist and distribution of semiaquatic and aquatic Heteroptera (Gerromorpha and Nepomorpha) occurring in Brazil. Zootaxa 2958: 1 - 74.","CORDEIRO I. DA R. S., MOREIRA F. F. F. & SILVA F. A. C. DA 2014: A new Ochterus (Hemiptera: Heteroptera: Ochteridae) from northeastern Brazil, with a key to the species recorded from the country. Zootaxa 3860 (5): 493 - 497.","PEREIRA D. L. V. & MELO A. L. 2007: Aquatic and semiaquatic Heteroptera (Insecta) from Pitinga, Amazonas, Brazil. Acta Amazonica 37: 643 - 648."]}

Genus Ƭ Riegerochterus Popov & Heiss, 2014 Riegerochterus Popov & Heiss, 2014a: 186 –187 (description,differential diagnosis). Type species: Riegerochterus baehri Popov & Heiss, 2014a, by original designation.

Ochterus zetteli Gapud, 2003 Ochterus zetteli Gapud, 2003: 103–107 (description, differential diagnosis, illustrations). HOLOTYPE:, Philippines: Palawan: ‘ Busuanga Island, W. Borac’ (UPLB). Ochterus zetteli: CHEN et al. (2005): 413 (checklist). Distribution. Oriental Region: Philippines: Palawan: Busuanga Island (GAPUD 2003)., Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on page 48, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659, {"references":["GAPUD V. P. 2003: Two new Philippine Ochterus Latreille (Insecta: Heteroptera: Ochteridae) and checklist of Philippine species. Annalen des Naturhistorischen Museums in Wien, Serie B 104 [2002]: 99 - 108.","CHEN P. - P., NIESER N. & ZETTEL H. 2005: The aquatic and semi-aquatic bugs (Heteroptera: Nepomorpha & Gerromorpha) of Malesia. Fauna Malesiana Handbook, Vol. 5. Brill, Leiden - Boston, x + 546 pp."]}

Ochterus xustos Nieser & Chen, 1992 Ochterus xustos Nieser & Chen, 1992: 12 ‒13 (description, differential diagnosis, illustration). HOLOTYPE:, Malaysia: Sabah: ʻJesselton, Sensuran road, mile 25, 4000 ft [= 1219 m a.s.l.]’ (RMNH). Ochterus xustos: NIESER & CHEN (1999): 90 –91 (key, illustration); CHEN et al. (2005): 413 (checklist). Distribution. Oriental Region: Malaysia: Sabah (NIESER & CHEN 1992).

Ochterus jaczewskii Kormilev, 1971 Ochterus jaczewskii Kormilev, 1971: 434, 439 (description, differential diagnosis, illustrations). HOLOTYPE:, Indonesia: West Papua: ‘ NW New Guinea, Vogelkop, Irai R., N of Lake Anggi Giji, 1850 mʼ (BPBM). Ochterus jaczewski (incorrect subsequent spelling): GAPUD (1981): 302 –303, 305, 307 (diagnosis, illustrations). Ochterus jaczewskii: BAEHR (1990b): 452 –454, 456–459, 461, 466–467 (key to species, redescription, illustrations); CHEN et al. (2005): 413 (checklist). Distribution. Australian Region: Indonesia: Papua (POLHEMUS & POLHEMUS 1998), West Papua (KORMILEV 1971, BAEHR 1990b); Papua New Guinea, incl. Normanby Island (KORMILEV 1971, 1972; GAPUD 1981)., Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on page 39, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659, {"references":["KORMILEV N. A. 1971: Ochteridae from the Oriental and Australian Regions (Hemiptera-Heteroptera). Pacific Insects 13: 429 - 444.","GAPUD V. P. 1981: Contribution to the taxonomy of the genus Ochterus Latreille (Hemiptera: Ochteridae). Kalikasan, Philippine Journal of Biology 10 (2 - 3): 300 - 309.","BAEHR M. 1990 b: Revision of the genus Ochterus Latreille in the Australian Region (Heteroptera: Ochteridae). Entomologica Scandinavica 20: 449 - 477.","CHEN P. - P., NIESER N. & ZETTEL H. 2005: The aquatic and semi-aquatic bugs (Heteroptera: Nepomorpha & Gerromorpha) of Malesia. Fauna Malesiana Handbook, Vol. 5. Brill, Leiden - Boston, x + 546 pp.","POLHEMUS D. A. & POLHEMUS J. T. 1998: A biodiversity survey of aquatic insects in the Ajkwa River Basin and adjacent areas, Irian Jaya, Indonesia. Tropical Biodiversity 5 (3): 197 - 216.","KORMILEV N. A. 1972: A new species of the genus Ochterus Latreille, 1807, from New Guinea (Hemiptera-Heteroptera: Ochteridae). Pacific Insects 14: 585 - 587."]}

Ochterus marginatus insularis Rieger, 1977 Ochterus marginatus insularis Rieger, 1977: 213 –214 (description, differential diagnosis, illustrations). HOLOTYPE:, Philippines: Mindanao: ‘ Süd [= South] Mindanao, Port Banga’ (ZSMC). Ochterus marginatus (partim): KORMILEV (1971): 435 –436 (partim, distribution); GAPUD & SAN VALENTIN (1977):271, 273–276, 281, 285–286, 288–289, 294, 296–298 (key to species, redescription, illustrations, variation); GAPUD (1981): 301 –302 (taxonomy); GAPUD (1986): 32 –34 (key to species, redescription, illustration); NIESER & CHEN (1999):91 (partim, distribution); CHEN et al. (2005): 413 (checklist); POLHEMUS & POLHEMUS (2012): 345 (partim, distribution). Ochterus marginatus insularis: GAPUD (2003): 107 (checklist); POLHEMUS & POLHEMUS (2012): 345, 347 (variability). Distribution. Oriental Region: Philippines: Cebu (GA- PUD 2003), Leyte (GAPUD 1981), Luzon (KORMILEV 1971, RIEGER 1977, GAPUD & SAN VALENTIN 1977, YANO et al. 1981, NIESER & CHEN 1999, POLHEMUS & POLHEMUS 2012), Mindanao (RIEGER 1977, GAPUD 1981, NIESER & CHEN 1999, POLHEMUS & POLHEMUS 2012), Mindoro (KORMILEV 1971, GAPUD & SAN VALENTIN 1977), Palawan (KORMILEV 1971, GAPUD 2003), Romblon (GAPUD 1981). Note. According to GAPUD (1981), out of the twelve individuals he examined, all except one agreed with the diagnosis of O. marginatus insularis by RIEGER (1977). He considered difficult to assess whether these characters are sufficient for a subspecies delimitation. According to POLHEMUS & POLHEMUS (2012), the population of O. marginatus from Bali may also belong to this subspecies (see Notes under O. marginatus marginatus)., Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on page 43, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659, {"references":["RIEGER CH. 1977: Neue Ochteridae aus der Alten Welt. Deutsche Entomologische Zeitschrift, Neue Folge 24: 213 - 217.","KORMILEV N. A. 1971: Ochteridae from the Oriental and Australian Regions (Hemiptera-Heteroptera). Pacific Insects 13: 429 - 444.","GAPUD V. P. & SAN VALENTIN H. O. 1977: The Ochteridae (Hemiptera) of the Philippines. Kalikasan, Philippine Journal of Biology 6 (3): 269 - 300.","GAPUD V. P. 1981: Contribution to the taxonomy of the genus Ochterus Latreille (Hemiptera: Ochteridae). Kalikasan, Philippine Journal of Biology 10 (2 - 3): 300 - 309.","GAPUD V. P. 1986: Philippine water bugs. Guide to Philippine Flora and Fauna 8: 1 - 47.","NIESER N. & CHEN P. - P. 1999: Sixteen new species of Nepomorpha mainly from Sulawesi. Notes on Malaysian aquatic and semiaquatic bugs (Heteroptera), VIII. Tijdschrift voor Entomologie 142: 77 - 123.","CHEN P. - P., NIESER N. & ZETTEL H. 2005: The aquatic and semi-aquatic bugs (Heteroptera: Nepomorpha & Gerromorpha) of Malesia. Fauna Malesiana Handbook, Vol. 5. Brill, Leiden - Boston, x + 546 pp.","POLHEMUS D. A. & POLHEMUS J. T. 2012: Guide to the aquatic Heteroptera of Singapore and Peninsular Malaysia. IX. Infraorder Nepomorpha, families Ochteridae and Gelastocoridae. Raffles Bulletin of Zoology 60: 343 - 359.","GAPUD V. P. 2003: Two new Philippine Ochterus Latreille (Insecta: Heteroptera: Ochteridae) and checklist of Philippine species. Annalen des Naturhistorischen Museums in Wien, Serie B 104 [2002]: 99 - 108.","YANO K., MIYAMOTO S. & GABRIEL B. P. 1981: Faunal and biological studies on the insects of paddy fields in Asia. IV. Aquatic and semiaquatic Heteroptera from the Philippines. Esakia 16: 5 - 32."]}