Dolichopodidae. 281 



Male. Vertex and frons blackish, with brown pruinosity. Epi- 

 stoma whitish grey, very broad for a male. Palpi dark. Occiput 

 grey; postocular bristles black above, whitish below. Antennæ black, 

 long, the third joint somewhat lancet-like, attenuated into a long and 

 thin apex; arista apical, very short, scarcely one third of the length 

 of the third joint; the thumb-like prolongation of the second joint is 

 only present on the inside; the basal joint bare above (aceording to 

 Mik it raay sometimes have a single hair). Thorax slightly æneoiis, 

 greyish brown pruinose (aceording to Mik it has, when seen from 

 behind, three narrow, black stripes; my specimen is not in so good 

 a condition as to show them) ; acrostichal bristles uniserial. Pleura 

 greyish. Abdomen dark æneous green, the second segment translucent 

 yellowish, especially towards the sides, also the third segment with 

 an indication of this colour; abdomen clothed with short, black hairs, 

 and it has hindmarginal bristles, long on the first segment. Venter 

 chiefly yellowish, with pale hairs. Legs yellow, posterior coxæ grey; 

 anterior tarsi with the apex of metatarsus and the four following 

 joints blackish; hind tarsi black, the metatarsus very slightly longer 

 than the second joint. The legs have short, blackish hairs; coxæ 

 pale-haired, with some black hairs at the apex, the hind coxæ with 

 a black bristle on the outer side; front femora with a brownish bristle 

 below at the base (aceording to Mik also the middle femora have a 

 similar, but weaker bristle more distant from the base, in my speci- 

 men it is wanting) ; middle femora with a preapical bristle on each 

 side, hind femora with one on the anterior side; front tibiæ with a 

 distinct bristle above near the base ; middle tibiæ with three antero- 

 dorsal, one postero-dorsal and one ventral bristle; hind tibiæ with two 

 rows of dorsal bristles, a ventral bristle below and some smaller 

 above it; hind metatarsus with two longer bristles below, the second 

 joint a little excised below on the apical part and here with a long, 

 erect bristle. Wings a little brownish tinged; veins blackish, the discai 

 vein with a scarcely observable bend. Squamulæ yellowish with a 

 dark spot above, the fringe dark brown or blackish brown. Balteres 

 yellow. 



Female. I do not know the female, and it was also unknown to 

 Meigen and Zetterstedt; aceording to Mik the antennæ are short, the 

 arista longer than the antennæ. Frons and epistoma very broad, the 

 latter whitish grey, protruding downwards. Legs without the special 

 bristles. 



Length 2,3 mm. 



Remarks: As already remarked by Zetterstedt and Mik it is a 

 question whether this species is identical with the nifipes of Meigen, as 



