110 Orthonhapha brachycera. 



protrude at the base of the lower, they are hook-shaped, curved 

 sllghtly downwards and about as long as the lower; the eighth ventral 

 segment is arched and drawn forwards (anus hians) and from here 

 the long, thread-like penis issnes, it is ' curved forwards and slightly 

 sinuous; the hinder margin of the eighth ventral segment and the 

 lower margin of the lower lamellæ have long hairs, and the lamellæ 

 have a fan-like tuft of hairs at the apex; the upper lamellæ 

 are short-haired above; all the hairs are black. Legs black or 

 brownish; coxæ greyish pruinose; hind metatarsi slightly thickened. 

 Front femora short-haired ; middle femora with an antero- and postero- 

 ventral row of bristly hairs which are long in the basal half, but 

 suddenly become short in the apical half, further there is a row of 

 hairs above on the anterior side, also becoming short towards the apex ; 

 hind femora with shortish, fine hairs below, stronger and dense hairs 

 above; front tibiæ with a fine, dense pubescence below and a row 

 of bristly hairs above; middle tibiæ with bristles and short hairs 

 below, and with a short, dense pubescence on the anterior side, 

 above with three to four somewhat strong bristles in the basal half 

 and one at the apex; hind tibiæ with shortish hairs below and long, 

 bristly hairs above; posterior tarsi somewhat spinulous beneath, 

 especially the hind pair; the dense pubescence on the front and 

 middle tibiæ is continued out on the tarsi on the ventral and anterior 

 side respectively; the hind metatarsi have long hairs above. The 

 hairs and bristles are black or brownish, the dense pubescence on 

 the anterior legs more or less pale. Wings blackish tinged; veins 

 black or dark brown. Stigma blackish or brownish. Halteres dark 

 yellow, not rarely darker and brownish. 



Female. Frons somewhat broad, dark grey; thorax more grey 

 than in the male and with three scarcely observable black stripes; 

 the thoracic bristles shorter, and abdomen short-haired. Legs com- 

 pressed, posterior femora pennate on both sides, the scaly hairs rather 

 long, especially on the hind femora; front tibiæ and metatarsi pennate 

 on the dorsal side, middle tibiæ and metatarsi likewise pennate above, 

 but ciliated below, only at the base the hairs are scaly; hind tibiæ 

 pennate on both sides with long, scaly hairs, those on the ventral 

 side being short towards base and apex. Wings a little more tinged 

 than in the male. Halteres paler, generally yellow. 



Length 4,2 — 5 mm. 



E. pennipes is not rare in Denmark; Ermelund, Boserup, Vemme- 

 tofte, at Nyraad near Vordingborg; on Falster; on Langeland at Lo- 

 hals and in Jutland at Silkeborg. My dates are ^/e — Vt. It occurs in 

 Woods on somewhat shaded piaces, and is often seen on Geranium 



