Mucha Ozerov and Ortalischema Frey newly recorded from China with descriptions of two new species (Diptera, Sepsidae) Author Li, Xuankun Author Yang, Ding text Zootaxa 2014 3815 2 249 262 journal article 45490 10.11646/zootaxa.3815.2.5 af78d534-90b4-42c2-986e-e9fe3e904f05 1175-5326 226959 3BA7D445-C2E9-47DD-8A5E-A840ADFE9550 Key to the Chinese genera of Sepsidae 1 Thorax and abdomen dully shining; mid femur dorsally concaved at middle....................... Toxopoda Macquart - Thorax and abdomen shining; mid femur not concaved at middle............................................... 2 2 Abdomen not constricted between tergites 2 and 3............................................................ 3 - Abdomen constricted between tergites 2 and 3............................................................... 5 3 Br and bm cell united........................................................... Saltella Robineau –Desvoidy - Br and bm cell separated............................................................................... 4 4 Setae on head reduced, with only 1 vti; fore tarsus flattened and banded black and white............... Ortalishema Fery - Setae on head developed, with 1 oc, 1 pvt, 1vti, 1 vte, and 1 or; fore tarsus without above structure and colour.............................................................................................. Decachaetophora Duda 5 Supra–alar seta absent; anepisternal seta vestigial or absent............................. Themira Robineau –Desvoidy - Supra–alar seta present; anepisternal seta present............................................................ 6 6 Arista with plumose or with short rays.................................................................... 7 - Arista bare.......................................................................................... 8 7 Face with well-developed facial carina; flagellomere I strongly lengthened, length nearly 2.5 times longer than width; arista plumose, rays distinctively longer than greatest diameter of arista ( Fig. 5 E)............................ Mucha Ozerov - Face without well-developed facial carina; flagellomere I not lengthened, length less than 2 times longer than width; arista with very short rays, longest rays not longer than greatest diameter of arista........................... Aristina Ozerov 8 Fronto–orbital setae developed............................................................ Meroplius Rondani - Front–orbital setae vestigial or absent..................................................................... 9 9 Male fore femur without any spines, setae, and tubercles........................................ Perochaeta Duda - Male fore femur with complex arrangement of spines, setae or tubercles........................................ 10 10 Male fore femur without spines or tubercles, only with a series of very short anteroventral spinules on apical half and a row of well–spaced posteroventral setae; sternite 4 heavily modified, with two pairs of moveable brushy appendages........................................................................................ Nemopoda Robineau –Desvoidy - Male fore femur not as above; sternite 4 normal, not modified................................................ 11 11 Abdomen in both sexes without distinct striking setae; male surstylus bifurcate at tip................ Dicranosepsis Duda - Abdomen in male and often in female also with distinct striking setae; male surstylus not bifurcate................... 12 12 Middle part of fore femur ventrally with 3–4 strong spines on a strong tubercle, followed by small tubercle frontward bearing 2 pv setae; wing hyaline, without dark spot near apex; epandrium weakly sclerotized.................. Allosepsis Ozerov - Fore femur not as above; wing sometimes with dark spot near apex; epandrium often strongly sclerotized...... Sepsis Fallén