Asilidae. 35 



Female. Epistomal beard blackish brown to deep yellow. The 

 hairs on the thoracic disc generally more yellow than in the male, 

 often deep yellow on the hind part. Abdomen slightly broader and 

 the pubescence whitish to yellowish; there is a whitish grey, pruinose 

 spot on each side at the hind margins of the segments. The hairs 

 on the legs are almost all whitish to yellow, and also the stronger 

 bristles are chiefly yellow. On the whole the clothing varies in colour 

 from being somewhat like that in the male through different variations 

 to nearly all deep yellow, The hind metatarsi are of common form, 

 as long as the other four joints together, slightly thickened. Wings 

 more or less brownish at the basal part, but not, or very slightly, 

 at the apex. 



Length 7—10 mm, 



This species is easily distinguished by its whole appearance; the 

 curiously shaped hind metatarsi in the male at once prevent any 

 mistake. 



L, hrevirostris is rather rare in Denmark and has only been caught 

 on very few occasions: Ermelund (Schlick), Nordskoven at Jægerspris 

 (the author), Skelskør (H. J. Hansen) and at Tuel Sø near Sorø (Schiødte), 

 in the latter locality in great numbers. The dates are in June, 



Geographical distribution: — Northern and middle Europe, Its 

 northern limit lies in middle Sweden. After Schiner it chiefly occurs 

 in the mountains. 



5. Lasiopogon Low, 



Species of middle size and blackish or greyish colour. Head short, 

 broader than thorax and broader than high, flat behind. Face 

 moderately broad, it is narrowest just below the antennæ and gets 

 broader downwards; there is a considerable cailus, reaching near to 

 the antennæ; the epistomal beard quite covers the callus. Antennæ 



Fig. 18. Antenna of L. cinctus. X 45. 



inserted near to each other, only slightly above the middle. Jowls 

 slightly descending below the eyes, No distinct ocellar bristles. An- 

 tennæ consisting of four (five?) joints; the flrst two short, the third 



