Pollenia. 133 



red-haired spaces are confluent above, so that all the fore part is 

 reddish-haired. Legs all black or tarsi slightly brownish; the hairs 

 on posterior side of front femora mainly yellow, for the rest black 

 and on tibiæ black; claws and pulvilli strong and robust. Wings 

 somewhat brownish tinged, especially along the veins; veins brown; 

 first posterior cell open, ending well before apex of wing; discai 

 angle rectangular with a veinlet. Squamulæ whitish hyaline with 

 a brownish margin. Halteres brown with yellow peduncle. 



Female. I have not seen the female. 



C. stimulator must be rare in Denmark, we possess no imago, 

 but some larvæ have been taken on Cervus capreolus on Møen (Rosen- 

 krantz). The above description is drawn from German specimens. 

 The species is parasitic on C. capreolus and pygargus. 



Geographical distribution: — Middle and southern Europe; 

 not known nortli of Denmark. 



Remarks: Nielsen mentions (Landbrugets Ordbog I, 1909) 

 that we have a species of Cephenomyia in Denmark, parasitic on 

 C. dama^ but he does not say its name ; this is certainly due to a 

 mistake, and he has no doubt only known the above mentioned 

 larvæ. 



18. Pollenia R. D. 



Species of medium size, black, more or less shining or with 

 abdomen pruinose and tessellated; they are characteristic by having 

 thorax clothed with metallic-coloured, felted hairs, as mentioned 

 below. Head not broader than thorax, flat behind, higher than long. 

 Frons in male narrow with touching orbits, in female broad, a little 

 or somewhat protruding. Cheeks rather broad and jowls half as broad 

 as the height of the eye or more. In male fme, parallel ocellar bristles 

 present, but no verticals, in female stronger, diverging ocellar bristles, 

 outer and inner verticals and two orbital bristles. Postocellar and 

 occipital bristles present. Occiput with black hairs behind the post- 

 ocular hristles. Frontal bristles reaching to insertion of antennæ, 

 being smaller upwards and stopping somewhat before ocellar tringle, 

 in female stronger, reaching quite up, and the uppermost directed 

 outwards. Cheeks densely hairy. Vibrissal ridges converging below, 

 the angle with the large vibrissa placed somewhat high above the 

 lower margin of epistoma, above it the vibrissæ a little or somewhat 

 ascending. Eyes with the facets in upper front part a little enlarged 

 in male. Epistoma slightly retreating, a little reflected below; it has 



