Wagneria. 541 



whitish pruinose. Orbits besides the row of orbitals with some few 

 hairs, some of which are more or less bristly. Cheeks with a row of 

 somewhat strong bristles along inner margin; jowls with strong 

 black hairs. Occiput grey, with only few pale hairs below, for the rest 

 with black hairs all over. Eyes with pale hairs. Antennæ black, third 

 joint very broad and dilated; arista thickened in basal half. Palpi 

 brownish black. Thorax blackish, greyish pruinose, most in front and 

 at the sides, with four stripes, the median narrow, abbreviated behind, 

 the lateral broad, interriipted at the suture; scutellum dark. Thorax 

 sparingly black-haired. Abdomen black, all segments greyish pruinose, 

 8hifting with dark according to view, the hind margins narrowly 

 black. Abdomen is black-haired; second segment with a pair of 

 marginal bristles, third with a pair of discai and marginal and fourth 

 with a pair of discai and a row of marginal; some of the hairs may 

 be rather bristly, especially at margin of third segment. Legs black, 

 somewhat robust. Wings a little or somewhat tinged, a little yellowish 

 at base; veins brownish black; cubital vein with bristles about half 

 way to medial cross-vein. Squamulæ yellow. Halteres dark yellow. 



Female. Similar; frons broader but not as broad as the eye, 

 with parallel margins; orbital bristles stronger and some of the hairs 

 on orbits strong. Antennæ shorter, third joint much less dilated. 

 Tarsi robust, the joints thickened towards apex so that the tarsi 

 below get a little serrated appearance. Squamulæ white. 



Length. About 6 mm. 



B. amplicornis is rare in Denmark, I know only 5 specimens, 

 4 males and a female; Jægerspris (I. C. Nielsen), in Jutland at Sønder- 

 borg (Wiistnei) and on Læsø (H. J. Hansen), and on Bornholm at 

 Rø (Weis); the dates are Vs into July; the specimen from Rø is bred 

 from Bapta temerata on ^^/g (Weis); no host was earlier recorded. 



Geographical distribution: — Europe down into Germany; 

 towards the north to northern Sweden. 



Remarks : Stein has 1. c. shown that the present species is different 

 from pagana Meig., which latter has in male no orbitals, and in both 

 sexes a row of marginal bristles on second segment, and besides there 

 are other characters. 



135. IVagnepia R. D. 



Species of medium to rather small size, the colour black, more 

 or less æneous, without or with slight pruinosity. Head slightly 



