A new genus and species of Ephydridae (Diptera) from the Oriental Region Author Zhang, Junhua Author Yang, Ding Author Mathis, Wayne N. text Zootaxa 2005 1040 31 43 journal article 50966 10.5281/zenodo.169819 902d9409-add0-4322-b71a-8a538c170dd2 1175­5326 169819 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)