200 Orthorrhapha brachycera. 



both black; besides there are smaller hairs in the præsutural depres- 

 sion. Scutellum with six black bristles. Pleura black, ^shining. Ab- 

 domen likewise black, shining, with not long, whitish yellow hairs. 



Fig. 80. Antenna of Oe. Holmgreni. X 65. 



Venter similarly coloured and haired. Legs yellow to dark, almost 

 brownish yellow, front and hind tibiæ blackish brown, the basal part 

 yellow, middle tibiæ more or less brownish or quite yellowish; all 

 tarsi brown, sometimes pale just at the base. The legs yellow-haired 

 quite in the usual way, and the hind femora likewise with rows of 

 black spines below in the apical part; the hairs on the tarsi some- 

 what darkened. Wings blackish brown fumigated. Veins blackish or 

 dark brown. Stigma blackish brown. Balteres more or less dark 

 yellow to brownish yellow. 



Female. Quite similar to the male, but the eyes well separated, 

 the frons black, shining. Abdomen shorter haired than in the male; 

 ovipositor slender, black or blackish. 



Length 2,8—3,5 mm. 



This species is known from stigmatella by the pale hind femora, 

 and it differs from the three other species by the black scutellar 

 bristles, and the darker tibiæ and tarsi. Strobl says (Mitth. Ver. 

 Steierm. 1892, 93) that it differs from flavipes by the longer antennal 

 style; the style is much thinner, but 1 fmd it not at all longer. 



O e. Holmgreni is as rare as the preceding species; Nyraad at 

 Vordingborg (J. G. Nielsen), Tisvilde and on Langeland at Lohals (the 

 author), on Lolland at Maribo (Schlick); my dates are '/e — "/?. It 

 occurs, on open, somewhat shaded piaces in woods. 



GecJgraphical distribution : — Northern and middle Europe down 

 into Styria; towards the north to middle Sweden. 



10. Ocydpomia Meig. 



Species of somewhat small size and of a slender shape, and of 

 black or yellow colour. The head is about globular, a little narrower 

 than thorax and slightly longer than broad. Occiput is arched or al- 

 most conical; it has some small hairs. Eyes large, occupying the 

 whole front part of the head; they are touching for a long distance 

 in both sexes; in the male the facets in the upper half part are 

 slightly larger than below. The incision in the middle of the inner 

 eye-margin distinct. On the vertex there are three ocelli and some 



