Sinops

Zhang, Junhua, Yang, Ding & Mathis, Wayne N., 2005, A new genus and species of Ephydridae (Diptera) from the Oriental Region, Zootaxa 1040, pp. 31-43 : 35

Key to Species of Sinops

1. Face distinctly bicolored and protrudent on ventral ½, dorsal surface of protrusion with some metallic blue coloration, ventral portion along oral margin densely microto­ mentose, whitish gray ( Nepal) ..................................................... S. kaskiensis (Mathis)

­ Face either unicolorous or with coloration changes gradual, anterior surface of ventral ½ nearly flat, not conspicuously protrudent.................................................................. 2

2. Dorsocentral setae 4, anterior seta presutural; overall length 2.9–3.4 mm ( Nepal)........ .................................................................................................... S. nepalensis (Mathis)

­ Dorsocentral setae 3, all postsutural; overall length 2.0– 2.6 mm ................................. 3

3. Apex of gonite dentate ( China: Sichuan) .................................. S. sichuanensis sp. nov.

­ Apex of gonite smooth, not dentate ( Japan and Ryukyu Islands) ... S. fluvialis (Miyagi)