Chrysotimus Loew

Wang, Mengqing, Yang, Ding & Grootaert, Patrick, 2005, Chrysotimus Loew from China (Diptera: Dolichopodidae), Zootaxa 1003 (1), pp. 1-32 : 2-3

Genus Chrysotimus Loew

Chrysotimus Loew, 1857: 48 . Type­species: Chrysotimus pusio Loew, 1861 , des. Coquillett (1910: 524).

Diagnosis. Small­sized (body length 1.4–2.8 mm); head and thorax usually with yellow or yellowish hairs and bristles, even sometimes thorax with brown or brownish hairs and bristles. Face parallel­sided, arista dorsal to apical on small first flagellomere. Thorax broad, metallic green, posterior mesonotum distinctly flattened; 4–6 dc, acr biseriate or absent. Legs often yellow or brownish; hind coxa with 1 outer bristle near middle; mid and hind femora often with preapical bristles, fore tibia without distinct ad (or pd), but mid and hind tibiae with distinct ad and pd. Most males with hind tarsomere 1 bearing several short erect black ventral bristles, and males with mid tarsomere 1 at least as long as the total of corresponding tarsomeres 2–4. Small hypopygium hidden under tip of abdomen.

Remarks. Guzeriplia Negrobov, 1968 , embodies the characters of Chrysotimus Loew in the head and thorax with the yellow hairs and bristles and biseriate acr. But in Guzeriplia , the hypopygium is large (almost as long as abdomen), bearing a long surstylus and cercus. Bickel (2004) reminded that it should be within the range of variation of the latter, probably as a synonymy.