The Sepsidae of the Mitaraka expedition, French Guiana (Diptera) Author Silva, Vera C. Departamento de Morfologia e Fisiologia Animal, de Ciências Agrárias e Veterinárias, UNESP - Universidade Estadual Paulista, Acesso Prof. Paulo Donato Castellane, s / n, 14884 - 900, Jaboticabal, SP (Brazil) de Pós-Graduação em Entomologia, FFCL Universidade de São Paulo (USP), Avenida dos Bandeirantes, 3900, 14040 - 900, Ribeirão Preto, SP (Brazil) vera. c. silva @ unesp. br silva@unesp.br Author Pollet, Marc Research Institute for Nature and Forest (INBO), Herman Teirlinckgebouw, Havenlaan 88 bus 73, B- 1000 Brussels (Belgium); and Entomology Unit, Royal Belgian Institute for Natural Sciences (RBINS), Vautierstraat 29, B- 1000 Brussels (Belgium) text Zoosystema 2020 2020-05-07 42 14 195 205 journal article 22201 10.5252/zoosystema2020v42a14 35b6b9f8-84f7-43fd-a024-da339cc61dac 1638-9387 3824270 urn:lsid:zoobank.org:pub:D90B9037-8482-431A-94D7-30C78E2DB288 Genus Palaeosepsioides Ozerov, 1992 DIAGNOSIS. — This genus is distinguished by the following features: absence of a well-developed fronto-orbital seta; abdomen polished and shiny, with a strong constriction after tergite 1+2; absence of a postmetacoxal bridge; vein CuA + CuP longer than cell cuA (length); and male terminalia symmetrical.