178 



Orthorrhapha brachycera. 



coxæ, tarsi brownish or blackish towards the apex. Front femora 

 with short hairs, especially above and on the posterior side; middle 

 femora with a row of bristles on the anterior side; hind femora short- 

 haired, a Httle longer above and below, and the 

 hairs below long at the apex; front tibiæ with 

 some short bristles on the dorsal side; middle tibiæ 

 with some scattered bristles on the various sides; 

 hind tibiæ with longer bristles on the dorsal and 

 anterior side. Front tibiæ as long as femora, very 

 slightly thickened towards the apex ; metatarsi only 

 slightly thickened, not thicker than the end of the 

 tibiæ, cylindrical, about three fourths of the tibiæ 

 in length, and about as long as the four foUowing 

 joints; all tarsal joints longer than broad. The 

 hairs brownish, the bristles black. Wings slightly 

 yellowish tinged. Veins brown to black; the cubital 

 fork somewhat long, the upper branch slightly 

 diverging, a little curved towards the apex. Stigma 

 large, brown. Halteres dark brown with a yellow 

 peduncle. 



Female. Frons slightly broader than in the 



male. Front metatarsi simple, about half as long 



as tibiæ, and as long as the three following joints ; 



hind tibiæ simple ; the bristles rather strong. The 



colour may be about the same as in the male, 



but often it is much darker, abdomen being lighter only at the base 



of the venter, pleura quite grey, and the legs nearly quite brownish 



or blackish, especially the hind legs. 



Length 4,5—5 mm. 



H. lurida is very rare in Denmark, only two specimens, both 

 males, have been taken, in the vicinity of Copenhagen, one in earlier 

 time (Stæger), and one later (H. J. Hansen). 



Geographical distribution : — Northern and middle Europe down 

 into Austria; towards the north to middle Sweden, and in Finland. 



Fig. 67. H. lurida, 

 front les. X 30. 



23. H. lasiopyga n. sp. 

 Male. Vertex and frons velvet black; epistoma brownish black; 

 palpi brownish yellow, with black hairs. Occiput dull black, with 

 black hairs. Antennæ black. Thorax blackish brown, dull or almost 

 dull, the bristles may form three very faint, darker stripes. The 

 dorsocentral and acrostichal bristles somew^hat long, black; the former 

 uniserial, longer behind, the latter biserial. Further a huraeral bristle, 



