Sciapodinae from the Himalayan region with description of nine new species from Tibet (Diptera: Dolichopodidae) Author Tang, Chufei Author Zhu, Yajun Author Yang, Ding text Zootaxa 2019 2019-04-04 4577 1 1 28 journal article 27403 10.11646/zootaxa.4577.1.1 d8261df6-dba5-4c69-afca-83b9b4db13c8 1175-5326 2628496 69A7BB4B-00BB-4558-A63C-948B49FD339D Key to species (males) of Chrysosoma in the Himalayan region 1 Arista-like stylus very long, as long as or longer than body ( Chrysosoma proliciens group)............................ 2 – Arista-like stylus relatively short, distinctly shorter than body.................................................. 4 2 Postpedicel and arista-like stylus fused, broad and shiny at base and curved back over entire body; 3 strong acr present; costal vein without curled bristles; halter dark brown; cercus brownish, with digitiform dorsal projection nearly as long as large bilobed, clavate ventral arm ( Yang et al . 2011 , fig. 94) [ China , India , Nepal ] …... Chrysosoma crinicorne ( Wiedemann, 1824 ) – Postpedicel triangular with long, curved dorsoapical arista-like stylus as long as body; 5 strong acr present; costal vein with short black, somewhat flattened and curly bristles extending to R 1 ; halter yellow; cercus yellowish, with short dorsal digitiform projection and large, bilobed clavate ventral arm ( Bickel 1994, fig. 60 ) [ India ].............................. 3 (Walker, 1856) 3 Cercus with short digitations and a large bifurcated ventral arm ….................. Chrysosoma proliciens (Walker, 1856) – Cercus long digitiform, wide and at apex ( Wang et al . 2014 , fig. 4) …... Chrysosoma nyingchiense Wang, Zhu & Yang, 2014 4 Wing with dark brown maculation, continuous along anterior margin, with shallow excavations on posterior margin in both sexes (Becker 1992, fig. 82) ( Chrysosoma vittatum group)..................................................... 5 – Wing hyaline, without maculation ( Chrysosoma leucopogon group in the Himalayan region)........................... 7 5 Mid and hind coxae black; cercus deeply bifurcated with strong bristles apically.................................... 6 – Mid and hind coxae yellow; cercus simple and hairy ( Becker 1922, fig. 83 ) [ India ] … Chrysosoma vittatum (Wiedemann, 1819) 6 Antenna dark yellow except scape blackish; 7 acr present; ventral branch of cercus rod-like, with only 1 pale apical bristle ( Yang et al . 2011 , fig. 117) [ China ]..................................................... Chrysosoma varitum Wei, 2006 –.. Antenna wholly yellow except postpedicel slightly blackish dorsally; 5 acr present; ventral branch of cercus band-like, bifurcated lightly at apex, with several apical bristles and 1 long, strong dorsal bristle at apical third [ China , India , Nepal ]................................................................................. Chrysosoma cupido (Walker, 1849) 7 Arista-like stylus distinctly longer than head and thorax together; legs mainly black; cercus obviously bifurcated ( Yang et al . 2011 , fig. 107) [ China , India , Nepal ]................................. … Chrysosoma leucopogon ( Wiedemann, 1824 ) – Arista-like stylus not or nearly as long as head and thorax together; legs mainly yellow; cercus various................ … 8 8 Mid tarsomere I without spine-like v; cercus with apical incision ( Wang et al . 2014 , fig. 2) ….......................................................................................... Chrysosoma furcatum Wang, Zhu & Yang, 2014 – Mid tarsomere I with row of 4–5 spine-like v; cercus without apical incision ( Wang et al . 2014 , fig. 6) [ China ] ….......................................................................... Chrysosoma spinosum Wang, Zhu & Yang, 2014