100 Tachinidae. 



A. pusilla is more common in Denmark than the other species; 

 Lundtofte, Lyngby, Bagsvær, Holte, Ruderhegn, Birkerød, Tisvilde 

 and in Jutland at Albøg near Grenaa (Kryger, the author) and on 

 Læsø (H. J. Hansen); the dates are 1^/5 — ^jio- 



Geographical distribution: - — Europe, towards the north to 

 southern Sweden and in Finland. 



5. Clytiomyia Rond. 



Somewhat small species of blackish and yellow colours. Head 

 somewhat broader than thorax, slightly convex behind and flattened 

 in upper part, a little or somewhat higlier than long, Frons narrow 

 in male, or broader and of about the same breadth in both sexes, 

 slightly protruding. Jowls narrow or broader to nearly one half of 

 the height of the eye. In both sexes only ocellar bristles present, but 

 very well developed postocellar and occipital bristles. No orbital 

 bristles. Behind postocular bristles no black hairs {pellucens) or a 

 row" above {rotiindiventris). Frontal bristles reaching to insertion 

 of antennæ, all crossing in both sexes. Cheeks bare. Vibrissæ not or 

 slightly ascending, the large vibrissa more or less pronounced, placed 

 a little above lower margin of epistoma. Epistoma not retreating, 

 a little hollowed in the middle and thus the lower part somewhat 

 reflected. Proboscis and oral cone short or somewhat longer. Palpi 

 thread-like. Antennæ inserted above the middle of the eye, short 

 {rotundiventris) or longer with third joint about twice as long as 

 second; arista bare, with second joint short or {pellucens) some- 

 what elongated. Thorax a little rectangular; three postsutural dorso- 

 centrals and only præscutellar acrostichals. Scutellum with two 

 marginal bristles on each side, sometimes also w^ak subapical. Two 

 sternopleural bristles. Pteropleura with a small bunch of hairs above. 

 Abdomen ovate; excavation on second segment reaching about to 

 middle ; a narrow sixth segment visible anterior to the præhypopygial ; 

 abdomen has smaller or larger marginal bristles, a pair on second 

 segment. Male genitalia bent in under venter, somewhat small. In 

 female the last segments simple, retractile. Legs of medium length; 

 ventral bristle on middle tibiæ wanting in male, present in female; 

 claws and pulvilli in male somewhat elongate. Wings with the first 

 posterior cell narrowly open or just closed, ending at apex of wing; 

 angle on discai vein obtuse. No costal spine, and bristles at base of 

 cubital vein very small-. 



