136 Orthorrhapha brachycera. 



line with short, black hairs, at the sides with long, yellow hairs; 

 there are no distinct bristles at the hind margin of the segments. 



Venter grey, dull, with yellow hairs. 

 Exterior genitalia large, the lower 

 lamellæ long, elongated triangular 

 and somewhat pointed; the upper 

 lamellæ with a deep incision and 

 thus divided into a lower, somewhat 

 rounded lobe, and an upper, more 

 dentiform lobe which is curved a 

 Fig.44. £. m^ncajis, male genitalia. little downwards. Penis ferruginous, 



thick at the base, going straight 

 about to the end of the lamellæ, but here curving upwards, and 

 with a very fme apex. The lower margin of the lower lamellæ has 

 long, yellow, towards the apex blackish hairs. The eighth ventral 

 segment is arched, and there is a somewhat large ventral lamella. 

 The two last abdominal segments are bent somewhat down, the 

 genitalia thus being at a lower level than the abdomen. Legs yellow; 

 coxæ very slightly pruinose; the apex of the femora black, the front 

 femora above and the middle femora on the anterior side more or 

 less darkened or blackened, the tibiæ towards the apex and the tarsi 

 black. Middle femora with two rows of bristly hairs below; hind 

 femora likewise with bristly hairs below, and on all sides towards 

 the base; front tibiæ with some bristly hairs above, short ciliated on 

 the posterior side, and with a short, fme pubescence below; middle 

 tibiæ with two dorsal rows of bristles and a ciliation below, which 

 is longest on the antero-ventral side; hind tibiæ with dorsal rows of 

 bristles and a short ciliation ventrally; tarsi densely haired, with 

 small bristles at the apex of the joints; the middle metatarsi and 

 apex of the tibiæ with long hairs on the posterior side; the hind 

 metatarsi with some bristles. The pubescence on the front tibiæ is 

 continued out on the tarsi. All hairs and bristles black. Wings 

 somewhat brownish tinged. Veins dark brown, the lower branch of 

 the cubital fork bending downwards, terminating just before the apex 

 of the wing. Stigma somewhat brownish. Halteres yellow. 



Female. Frons broad, grey; abdomen more grey than in the 

 male; ovipositor with somewhat long lamellæ. Legs short-haired , 

 middle femora and posterior tibiæ with short bristles; all tarsi spinu- 

 lous beneath ; middle femora not darkened on the anterior side. 

 Wings less tinged, more yellowish than in the male, especially to- 

 wards the apex. 



Length 8 — 10 mm. 



