220 Orthorrhapha brachycera. 



Schin. F. A. I, 186. — 1874. Kow. Verhandl. zool. bot. Geseli. Wien, XXIV, 

 472, 15. — 1903. Kat. palåarkt. Dipt. II, 318. — Dolichopus laesus 1823. 

 Fall. Dipt. Suec. Dol. 19, 25, p. p. c?. — Diaphorus minimiis Meig. 1830. 

 Syst. Beschr. VI, 360, 6. 



Male. Vertex and frons green. Epistoma greenish, more or less 

 whitish pruinose, very narrow downwards, the eyes almost or quite 

 touching. Palpi small, dark, a little yellowish at the apex. Occiput 

 greenish, greyish pruinose ; postocular bristles black above, whitish 

 below. Antennæ black, third joint rather small, a little broader than 

 long. Thorax bright green, golden green or æneous, sometimes more 

 bluish, somewhat greyish pruinose, shining. Pleura greenish or æneous, 

 grey pruinose ; propleura with two black or brown prothoracic bristles. 

 Abdomen bright green or bluish green, clothed with short black hairs, 

 and with somewhat short hindmarginal bristles, long on the first 

 segment; the eighth segment has a few short, strong bristles. Venter 

 green, with brownish hairs. Legs black, front coxæ greyish or whitish 

 grey pruinose anteriorly; front trochanters yellow, middle trochanters 

 yellowish or brownish, hind trochanters brownish or black; femora 

 shining metallic green; anterior knees, tibiæ and metatarsi yellow; 

 hind tibiæ and tarsi black or browmish black, sometimes the tibiæ 

 paler above and the metatarsi pale at the base. The legs have short, 

 black hairs, front coxæ a few pale hairs; femora with small hairs 

 below, bristly at the apex and arranged as usual; front tibiæ with 

 one small bristle above; middle tibiæ with two distinct antero-dorsal 



Fig. 71. Wing of C gramineus d". 



and very small postero-dorsal bristles; hind tibiæ with a few bristles 

 in two dorsal rows, and with a distinct ciliation on the anterior and 

 antero-dorsal side, indistinclly continued out on the tarsi. Wings a 

 little greyish tinged, bluish iridescent; veins black, posterior cross-vein 

 rather near the base. Squamulæ yellow, with a pale brownish or 

 generally yellow fringe. Balteres yellow. 



Female. Golour often more golden or æneous than in the male. 



