114 Orthorrhapha brachycera. 



grey spot or stripe on the outer side; anterior tarsi vvith the apex of 

 metatarsus and the four following joints black; hind tibiæ slightly and 

 indefinitely brownish at the apex, hind tarsi black. The legs have 

 short, black hairs, front coxæ white-haired, only a few black hairs at 

 the base inwards; also middle coxæ mainly pale-haired; hind femora 

 with a little longer hairs above towards the base, and with a fringe 

 of long, yellowish white hairs below in about the apical two thirds; 

 front tarsi with the three middle joints somewhat curved, shining on 

 the front side, with hairs on the antero-dorsal side, which are directed 

 obliquely downwards, and with dense, erect hairs on the anterior or 

 antero-ventral side; the three first joints have a somewhat curved 

 bristle at the apex on the antero-ventral side; posterior femora with 

 one preapical bristle; front tibiæ with bristles above, and with one or 

 two on the postero-ventral side; middle tibiæ with four to five antero- 

 dorsal bristles (two of them dorsal), two postero-dorsal, two antero- 

 ventral and one postero-ventral bristle; hind tibiæ with two dorsal 

 rows, and with one ventral bristle towards the apex, besides with a 

 ventral row of small bristles; middle metatarsi with one bristle above, 

 hind metatarsi with two to three bristles above, some anterior, and 

 small ventral bristles. Wings a little yellowish or light brownish 

 tinged; veins blackish brown, costa with a somewhat large, elongated 

 swelling; discai vein with a large bend, which is generally more rect- 

 angular than in festivus, especially the lower angle is generally sharp, 

 and sometimes with an indication of a veinlet; axillary lobe smaller 

 than in festivus^ anal vein going more forwards. Squamulæ yellow, 

 with a black fringe. Halteres pale yellow. 



Female. Epistoma broad, grey. Antennæ shorter than in the 

 male, third joint short, not longer than broad, triangular. Abdomen 

 black-haired at the sides. Legs with the front coxæ mainly black- 

 haired, only white-haired outwards; hind tibiæ quite yellow; front 

 tarsi simple, and hind femora not fringed. Wings without costal 

 swelling. 



Length 5 — 5,5 mm. 



This species is in the male easily distinguished from festivus by 

 the longer antennæ with the third joint considerably longer than 

 broad, and by the differently constructed front tarsi with a bristle at 

 the apex of three of the joints; in the female it is, I think, very 

 difficult to distinguish; I have only examined one female, and I find 

 only, that the hind tibiæ are quite yellow, and the axillary lobe 

 slightly smaller; the discai bend is the same in both species. 



D. ciliefemoratus is very rare in Denmark; we have only three 

 specimens, all males, two from Svenstrup between Roskilde and Ring- 



