Palcearcti'c Region in the British Museum. 109 



black, witli grey tomentnm and fine short rufous hairs on 

 the dorsum, some black hairs intermixed, greyer at the sides 

 and on f^houlders, breast- sides blackish brown ; halteres 

 reddish brown. Legs black, the extreme apices of femora 

 yellowish ; the pubescence is black, long oa the coxse and 

 femora. Abdomen black, shining ; pubescence black, the 

 hairs at the sides black, fulvous on the last two segments, the 

 underside black. Wings hyaline, narrowly yellowish brown 

 on the fore border, the veins reddish brown ; no appendix ; 

 the first posterior cell not narrowed at its apex. 



Length 16, width of head 5 mm. 



Female. — Very similar to the male. Frontal stripe 

 blackish, wilh grey tomentum ; the frontal callus black, 

 shining, oval, not reaching the eyes, prolonged as a narrow 

 stripe beyond the middle of the forehead, which is about four 

 times as long as it is broad ; no ocelligeroiis tubercle ; the 

 frontal triangle is black, shining, with a grey middle line 

 and grey at the sides, rather protuberant. Hind part of the 

 head with a black tuft of hairs in the centre and shorter 

 yellowish hairs beyond. Palfu black, with grey tomentum 

 and black hairs; the second joint long, rather stouter at 

 the base, gradually tapering to a point, almost straight. 

 Abdomen broader than in the male, with plum-coloured 

 tomentum on the basal segments, most noticeable on the 

 second one ; the fulvous hairs on the last segments are more 

 numerous and distributed over the dorsum of the segments ; 

 and is fainter coloured, nearly white. The hairs on the 

 thorax are also greyer than in the male. 



Length 15, width of head 5 mm. 



Tabanus aulumnalis, L. 



One female "from Eiskia, on the dunes Gj miles from the 

 town, 18. V. 93 " {Eaton), 91. 114. 



Tabanus corcUger, Meig. 



One female "from Biskra, en the dunes, caught between 

 7.15 and 9.30 a.m., 64 miles from the town, 31.* v. 93" 

 [Eaton), 94. 114. 



One female " from Biskra, near Ilammam as Salahm, 

 14. iv. 95 '^ {Eaton), 94. 114. 



This species does not appear to have been recorded before 

 from North Africa. 



