40 Oithonhapha brachycera. 



long, yellowish hairs, shorter and darker towards the end. The 

 genitalia are shining black with short, black hairs. Legs black, tarsi 

 sometimes more or less dark brownish ; coxæ greyish pruinose on the 

 outer side and with long, greyish or yellowish hairs. The upper 

 side of the femora with short, black hairs, sometimes paler, especially 

 towards the base; the ventral side with long, yellowish, towards the 

 apex blackish hairs; tibiæ with long, black hairs; the bristles on the 

 legs and tarsi black. The dense pubescence apically on the ventral 

 side of the hind tibiæ black, on the front tibiæ yellow. Wings slightly 

 greyish with blackish brown veins. Halteres dirty yellowish or rufous. 



Female. Quite agreeing with the male with exception of the 

 genital differences, only the abdomen is slightly broader and flat; the 

 eighth segment is quite shining black, the hairs on it pale and erect. 



Length 7,5—10 mm. 



L. cinctus is rather common in Denmark; it occurs in woods, 

 both in woods of foliferous trees and in pine-woods, on sandy piaces, 

 thus often on sandy roads, and it is generally seen sitting on the sand ; 

 on such piaces also the larvæ and pupæ are found ; vicinity of Copen- 

 hagen, Ørholm, Søllerød, Hillerød, Tyvekrogen, Tisvilde, Odsherred, 

 Hellebæk and at Tjiistrup Sø; in Jutland at Frijsenborg, Funder near 

 Silkeborg, Nørholm near Varde and Nymindegab. It is an early 

 occurring species, my dates are 'la — ^^li. The larva has been taken 

 at Ørholm on ^'/é, and pupæ in the same locality on ^/4, '■^'^U^ ''Ib and 

 ^"^/s; the pupæ taken on ^U developed on "^-^^/4. 



Geographical distribution: — Europe down into Italy and Dal- 

 matia; towards the north it goes into Lapland. 



6. Cyrtopogon Low. 



Species of middle or somewhat large size, and of black colour 

 but generally with more or less pale pruinosity. Head slightly broader 

 than thorax, broader than high; it is short, and flat behind. Face 

 rather broad, slightly narrowed towards the insertion of the antennæ. 

 There is a considerable cailus, occupying the whole face right to the 

 antennæ; the epistomal beard covers the whole callus. Antennæ 

 inserted near to each other, somewhat above the middle. Jowls small, 

 almost not descending below the eyes. No ocellar bristles are visible 

 among the hairs clothing frons and vertex. The antennæ consist of 

 five joints, the first two short, the third long and compressed, bearing 

 a style which is very indistinctly two-jointed and terminates in a 

 bristle-shape(i apex. The eyes have the facets in the middle front 

 part, from the inner eye-margin outwards, somewhat larger than the 



