iJolichopodidae. 93 



bristle; front tibiæ with bristles above, and one (sometimes two) on 

 the postero-ventral side; middle tibiæ with about four antero-dorsal 

 (one of them dorsal) and two postero-dorsal bristles, and with one 

 ventral a little below the middle; hind tibiæ with two dorsal rows, 

 one ventral bristle towards the apex, and a ventral row of small 

 bristles ; hind metatarsi with only one bristle above. Wings almost hyaline 

 or slightly yellowish towards the anterior margin; veins blackish, 

 costa with a small swelling; discai vein with a somewhat large, a 

 little angular, but obtuse bend; axillary lobe somewhat developed, 

 anal vein stretching somewhat forwards, Squamiilæ yellow, with a 

 fringe, the exterior hairs of which are black or brown, the interior 

 yellow, the predominance of the colour somewhat varying. Halteres 

 yellow. 



Female. Epistoma broad, white. Antennæ slightly shorter than 

 in the male. Hind femora without fringe, hind tibiæ simple, dark 

 yellowish except the apex. Wings without costal swelling, 



Length 3,5 — 4,5 mm. 



D. davipes is a rare species in Denmark; Amager, Dyrehaven 

 (Stæger), at Boserup near Roskilde, and in Jutland at Frederikshavn 

 (H. J. Hansen). My dates are in July. It occurs generally near the coast. 



Geographical distribution : — Northern and middle Europe down 

 into Bohemia; towards the north to southern Sweden, 



16. D. claviger Stann, 



1831, Stann. Isis 1831, 56, 9, — 1842. Stæg. Krøyer's Tidsskr. IV, 

 20, 11. — 1843. Zett. Dipt. Scand. II, 532, 27, et 1859. XIII, 5048, 27. 

 — 1862. Schin. F. A. I, 216. — 1903. Kat. palaarkt. Dipt. II, 297. 



Male. Vertex and frons green or bronze-green. Epistoma nar- 

 row, white, Palpi yellow. Occiput green, greyish pruinose; post- 

 ocular bristles yellow below, black above. Antennæ shorter than the 

 head, third joint somewhat ovate, pointed, not longer than broad; 

 they are black, the basal joint yellow^ beneath. Thorax green, often 

 golden green, and there may be a golden middle stripe; it is fmely 

 greyish pruinose, shining. Scutellum shghtly pale-pubescent; post- 

 scutellum greyish pruinose. Pleura greenish, grey pruinose; propleura 

 with fine, pale hairs and a black prothoracic bristle. Abdomen green, 

 golden green or copper-coloured, sometimes with bluish reflexes, finely 

 whitish pruinose downwards ; there are narrow, dark hind margins to the 

 segments; abdomen is clothed with short, black hairs, the hindmarginal 

 bristles are short, only long at the sides of the first segment. Venter 

 greenish grey, distinctly yellow-haired, the hairs on the third segment 

 curved forwards. Hypopygium somewhat long, black, slightly æneous. 



