Bombyliinae

Yao, Gang, Yang, Ding & Evenhuis, Neal L., 2009, First record of the genus Euchariomyia Bigot, 1888 from China (Diptera: Bombyliidae), Zootaxa 2052, pp. 62-68 : 63

Key to genera of Bombyliinae from China

1. Wing with discal cell broadest apically, crossvein m-m meets m-cua at an obtuse angle; radial sector broad with costa tending to bulge forwards near apex of wing ........................................................................ Conophorus Becker

- Wing with discal cell broadest near middle, crossvein m-m meets m-cua at not much more than a right angle; radial sector not enlarged with costa more or less straight along fore margin of wing .......................................................... 2

2. Head usually distinctly narrower than thorax; eyes not indented on the hind-margin; wings usually large, broad at base with anal lobe, alula and squama well-developed; hind femora always with well-developed macrochaetae on underside; body always broad, macrochaetae usually well-developed......................................................................... 3

- Head usually as broad as thorax; hind-margin of eyes indented; wings often small, narrowed at base with at least alula reduced; hind femora often without macrochaetae; body usually more elongate even narrow conical or cylindrical, macrochaetae usually weak often hair-like especially those posterior to the wings............................................ ............................................................................................................................................. Anastoechus Osten Sacken

3. Cell br (first basal) longer than cell bm (second basal), r-m sometimes equal to m-m; vestiture various, often with black hair and/or scale patches; wing, pattern various, sometimes with a clear-cut dark infuscation and/or with isolated dark spots ............................................................................................................................................................. 4

- Cell br equal in length to bm; r-m usually much shorter than m-m, occasionally almost as long; vestiture fine and silky with a clipped appearance at least on occiput and thorax, hair white to straw-yellow or brown shading to paler on underside; wing infuscation, if present, diffuse and darker along fore border .............................. Systoechus Loew

4. Small size (less than 10mm); wing completely infuscated............................................................ Euchariomyia Bigot

- Body size big usually over 10mm; wing has some hyaline parts ................................................................................. 5

5. Scape about twice length of pedicel; upper facets of eyes of males not enlarged; face short and with short sparse hair only; wing base black, remainder hyaline or tinged yellowish; hair short and with a clipped appearance usually with abundant black elements contrasting with areas of white, orange or grey ................................. Bombomyia Greathead

- Scape more than twice length of pedicel; upper facets of eyes of males enlarged; face long, prominent and with long hair; wing pattern, if present, basicostal often diffuse and sometimes with isolated spots, wing rarely completely infuscated; hair usually long, sometimes tufted and rarely with a clipped appearance, usually predominantly white to yellow or brown with few black elements, if predominantly black then without a contrasting pattern of pale hair ...... ....................................................................................................................................................... Bombylius Linnaeus