Dolichopodidae. 199 



hairs. Flypopygium yellow, the eighth segment and the basal part 

 brownish; eighth segment with short, black hairs; the ventral lobes 

 are long and thin, brownish or blackish towards the end; they have 

 long, pale hairs at the apex and on the margin towards the apex, 

 those at the apex are very long and curved; on the ventral margin, 

 at a distance from the apex there is a single hair; the outer lamellæ 

 are long and narrow, with black apex, they have yellow and brownish 

 hairs at the margin, those at the ventral margin towards the end 

 are the longest; besides, the lamellæ have some (5) variously curved 

 teeth or prolongations towards the end on the inside. Legs yellow, 

 front coxæ pale yellow, the posterior more reddish yellow ; the middle 

 coxæ may be a little greyish on the outslde; front tarsi much longer 

 than tibiæ, a little brownish, the fourth joint compressed, slightly 

 dilated, with hairs above, the fifth joint strongly compressed, and 

 dilated towards the dorsal side, triangularly disciform with the apical 

 margin rounded; it is black or brownish black; posterior tarsi with 

 the very apex of metatarsus and the four following joints brown or 

 blackish; they are likewise long. the middle tarsi considerably longer 

 than tibiæ; hind metatarsi a little shorter than the second joint. The 

 legs have short, black hairs, front coxæ pale-haired anteriorly; posterior 

 femora with one preapical bristle; front tibiæ with a couple of bristles 

 above, none below; middle tibiæ with two dorsal rows and a small 

 ventral bristle below the middle; hind tibiæ likewise with a few 

 bristles in two dorsal rows, and with a ventral row of small bristles; 

 the posterior tarsi slightly spinulous beneath. Wings somewhat brownish 

 tinged; veins black or brownish, the discai vein evenly curved, the 

 curve nearest to the cross-vein. Squamulæ yellow, with a yellowish 

 fringe. Halteres deep yellow. 



Female. Epistoma broad, light grey. Antennæ much shorter 

 than in the male, third joint not or slightly longer than broad, pointed 

 oval ; the arista shorter, with the first joint much shorter, only half 

 as long as the second, The anterior tarsi shorter than in the male 

 and front tarsi simple; hind metatarsi considerably shorter than the 

 second joint. 



Length 4 to fully 5 mm; the male has the greatest length. 



H. discipes is rare in Denmark; Stæger notes that it was taken 

 in Dyrehaven by Westermann ; besides we have it from Ordrup Mose 

 and Dyrehaven (Stæger), and from Roskilde (H. J. Hansen). Wester- 

 mann took it in July on tree-trunks. 



Geographical distribution:— Northern and middle Europe down 

 into France; towards the north to southern Sweden, 



