Dolichopodidae. 373 



metathorax small, the former with bristles above; propleura with a 

 few, fine hairs. The acrostichal bristles short, uniserial in front, 

 irregulary biserial behind; there are six dorsocentral bristles; further 

 a humeral bristle, a posthumeral, two notopleural, a præsutural, three 

 sapraalar and a postalar bristle; there are only few, small hairs on 

 the front part of the disc. Scutellum has two marginal bristles, 

 between them are four small hairs, and one outwards at each side. 

 Abdomen somewhat short and compressed; in the male there are six 

 visible dorsal segments of nearly the same length, or the sixth a 

 little shorter; on the ventral side there are five segments of the same 

 length, except the first, which is, as usual, very short; the seventh 

 segment is quite small and hidden. The hypopygium is small and 

 roundish; it lies imbedded at the end of abdomen, directed down- 

 wards, the end of it with the eighth segment is seen at the apex of 

 abdomen; as far as I could see it is shaped as in Campsicnenms, wWh 

 a deep dorsal incision in which the united and hairy outer lamellæ 

 lie, they are thus seen just at the end of abdomen. In the female 

 the abdomen consists of five normal segments, the others are hidden. 

 There are small dot-like impressions at the sides on some of the ab- 

 dorainal segments, and the segments have short hindmarginal bristles, 

 long on the first segment. Legs somewhat slender; hind metatarsus 

 from slightly shorter to considerably longer than the second joint, 

 without bristles above. (In the Danish species it is slightly shorter 

 to as long as the second joint). In the males the hind tibiæ are 

 more or less peculiarly formed and armed, and also the middle 

 femora and tibiæ have special bristles. In both sexes the front legs 

 are without bristles, the middle tibiæ have two antero-, one postero- 

 dorsal, and one ventral bristle, in the males besides a second ventral 

 bristle {T. simplex Mik (non Danish) makes an exception; the male 

 has the hind tibiæ simple, and only one ventral bristle on the middle 

 tibiæ, the female none). The hind coxæ have a bristle on the out- 

 side; posterior femora with a preapical bristle, and the tibiæ with 

 apical or preapical bristles, small or wanting on the front tibiæ. 

 There are two small claws and pulvilli, and a narrowly lobe-shaped 

 empodium with bristles below, and thus somewhat comb-shaped. 

 Wings of usual shape, not long; the costa has in the male a long 

 thickening from the apex of the subcostal vein outwards, decreasing 

 in thickness towards the end and thus elongated cuneiform^; the 

 mediastinal vein terminates in the subcostal vein ; the cubital and 



Wanting in T. tevnemargiuatus Strobl (Verh. zool. bot. Geseli. LIX, 1909, 188) 

 if this species is really a TeuchopJionis. 



