Calosargus Mostovski, 1997

Zhang, Kuiyan, Yang, Ding & Shih, Dong Ren Chungkun, 2007, The oldest Calosargus Mostovski, 1997 from the Middle Jurassic of China (Diptera: Brachycera: Archisargidae), Zootaxa 1645, pp. 1-17 : 2

Genus Calosargus Mostovski, 1997

Type species. Calosargus (Calosargus) tatianae Mostovski, 1997 .

Diagnosis. Head round, antennal flagellum bristle-like (if preserved). Wing slender; vein Sc ending far beyond middle of wing; vein R1 long; vein R2+3 ending at vein R1 before wing margin, vein R5 ending at (or beyond) wing apex; vein CuA1 arising from cell d; vein CuP present, vein CuA2 short; cell sc and cell r4 wide open, cell r4 short, cell d large, and cell cup narrowly open ( Mostovski 1997, Nagatomi & Yang 1998).