Dolichopodidae. 135 



of medium size, anal vein going somewhat forwards. Squamulæ 

 yellow, with a black fringe. Halteres yellow. 



Female, Epistoma broader tiian in the male, white or greyish 

 white. Antennæ shorter, third joint shorter than broad. Hind 

 femora without fringe beneath. Wings somewhat more tinged, with 

 no costal swelling. 



Length 4 — 4,5 mm. 



This species is in the male easily known from notabilis by the 

 want of a long hair at the apex of the front tibiæ, by the shorter 

 antennæ, silver-white epistoma and the fringe of longish hairs below 

 the hind femora; the female may likewise be known by the white 

 epistoma and shorter antennæ. 



D. caligatus is rare in Denmark, and has only bcen taken in 

 Jutland; Horsens, Laven near Silkeborg, Frijsenborg, Ravnkikle and 

 Tinbæk Mølle at Lindenborg Aa. It was taken in the last part of 

 July and first part of August. 



Geographical distribution: — Northern and middle Europe down 

 into Bohemia and Styria; towards the north to southern Sweden, and 

 in Finland. 



38. D. lineatocornis Zett. 



1843. Zett. Dipt. Scand. II, 538, 32. — 1862. Schin. F. A. I, 222. 

 — 1903. Kat. palaarkt. Dipt. II, 299. 



Male. Vertex and frons green. Epistoma narrow, deep yellow 

 or ochraceous. Occiput green, greyish pruinose; postocular bristles 

 yellowish below, black above. Antennæ about as long as the head, 

 third joint somewhat large, a little longer than broad, short pointed; 

 they are black, the basal joint yellow below. Thorax greenish or 

 æneous, sometimes with a more golden middle stripe, slightly pruinose, 

 shining; scutellum fmely yellow pubescent; postscutellum greenish, 

 greyish pruinose. Pleura greenish, grey pruinose; propleura with 

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

 less with golden or coppery retlexes, finely whitish pruinose downwards, 

 the segments with narrow, dark hind margins ; it is clothed with short, 

 black hairs, and has hindmarginal bristles, which are only slightly 

 longer on the first segment. Venter greenish grey, slightly pale-haired. 

 Hypopygium æneous black, greyish pruinose; eighth segment with 

 black hairs; there are a little projecting posterior ventral lobes with 

 the apical point turned upwards; the inner lamellæ curved down- 

 wards, the median thin, the lateral dilated, with a dilatation at the 

 apex; the outer lamellæ roundish rectangular, whitish, with a narrow, 

 blackish margin along the ventral, apical and outer part of the dor- 



