90 Orthorrhapha brachycera. 



longer, curved hairs ; for the rest the dorsal margin has straight hairs. 

 Legs black, coxæ grey, a little lighter anteriorly; knees reddish, the 

 anterior tibiæ sornetimes somewhat piceous. The legs have short, 

 black hairs, hind femora somewhat longer hairs above towards the 

 base ; posterior femora with one preapical bristle ; the front tibiæ have 

 bristles above and two postero-ventral bristles; middle tibiæ with 

 about four to five antero-dorsal, two postero-dorsal bristles, and one 

 ventral.below the middle; hind tibiæ with two dorsal rows, and with 

 one ventral bristle towards the apex, besides with a ventral row of 

 small bristles; hind metatarsi with two or three bristles above, one 

 on the anterior side, and small bristles below. Wings a little brownish 

 tinged, most tow^ards the anterior margin; veins black or blackish 

 brown; discai vein with an obtuse, but somewhat angular bend; axil- 

 lary lobe somewhat small, anal vein going forwards. Squamulæ yel- 

 low, with a black fringe. Balteres yellow. 



Female. Epistoma broad, grey. Antennæ as in the male. 



Length 4 to about 4,5 mm. 



D. atripes is rare in Denmark; Lyngby Mose (Esben Petersen); 

 in Jutland in Grejsdalen at Vejle, at Silkeborg and Laven near Silke- 

 borg; and on Bornholm at Almindingen (H. J. Hansen). The dates 

 are in July and August. It occurs in woods on open, humid piaces, 

 and near water. 



Geographical distribution: — Northern and middle Europe down 

 into France; towards the north to middle Sweden. 



14. D. vitripennis Meig. 



1824. Meig. Syst. Beschr. IV, 78, 7. — 1831. Stann. Isis 1831, 134, 

 28. — 1871. Loew, Beschr. Eur. Dipt. II, 259 et 261. — 1903. Kat. palåarkt. 

 Dipt. II, 306. — Dolichopus tibiellus Zett. 1843. Dipt. Scand. II, 526, nota, 

 et 1849. VIII, 3079, 21—22, et 1852. XI. 4285, 21-22. — 1859. Loew, 

 Neue Beitr. VI, S, 3. 



Male. Vertex and frons green. Epistoma somewhat narrow and 

 long, white. Palpi black. Antennæ black, a little elongated, as long 

 as the head, third joint triangularly ovate, longer than broad. Occiput 

 green, a little greyish pruinose; postocular bristles whitish below, black 

 above. Thorax green, very slightly pruinose, shining; scutellum finely 

 yellow pubescent; postscutellum grey pruinose. Pleura green, grey 

 pruinose; propleura with fine, pale hairs, and a black prothoracic 

 bristle. Abdomen green, sometimes with slight bronze reflexes, very 

 slightly whitish pruinose downwards; the hind margins of the segments 

 narrowly dark. It is clothed with short, black hairs, and has some- 

 what short hindmarginal bristles. Venter greyish, very slightly pale- 



