neio Sjm-ies of Ti\\rdu\. 315 



continuous distinct stripe of" grey tomentum, tlie sides of 

 which are straigiit ; the pubescence on the dorsum black, 

 except on the stripe which has white hairs and at the sides 

 are yellow hairs; underside reddish, darker at the apex. 

 Legs brown; the tibiae yellowish red, darker on apex in the 

 fore tibiae ; the fore tarsi and the apical joints of the other 

 tarsi brown ; the apex of the femora yellowish ; the pubescence 

 on the coxae whitish, elsewhere black and short. Wings 

 longer than the body, hyaline, tinged with yellowish brown; 

 veins yellow; stigma yellowish brown ; all posterior cells 

 widely open. 



Tabanus alltostriatus, ? , sp. n. 



The following specimens are in the British Museum 

 collection : — 



Type and another female from the Transvaal (Ross), 

 97. 99. 



A black species with a white median stripe on the abdomen 

 and grey side-spots. Antennas blackish ; the palpi very 

 slender, pale yellow. Legs yellow, with darker femora. 

 Eyes very slightly pubescent. Wings with an appendix, 

 tinged with brown. 



Length 13 mm. 



Head broader than thorax. Face grey, with scanty white 

 pubescence ; some black hairs below the antennge ; beard 

 white. Palpi pale transparent yellow, curved, very slender, 

 ending in a long point, slightly stouter at base, with some 

 short black hairs. Antenna* slender; tooth very obtuse, only 

 an angle; the first joint yellowish, covered with grey 

 tomentum and black hairs, not very cap-shaped ; the second 

 small, yellowish, with black pubescence ; the third black, red 

 at its extreme base only. Forehead short, about four times 

 as long as it is broad and same width throughout, grey, with 

 small brown triangular frontal callus, not reaching the eyes, 

 continued in a narrow thick line almost to the vertex, which 

 is covered with grey tomentum ; the pubescence on the fore- 

 liead black. Eyes with no band, the pubescence very slight 

 and easily overlooked, the back of the head with white 

 pubescence. Thorax blackish brown, covered with fairly 

 dense short greyish pubescence, through which three grey 

 stripes a[)pear; the sides grey, with longer black hairs; the 

 breast-bone covered with black hairs ; a tutt of white hairs 

 below near root of wings. Scutellum same colour as thorax, 

 with the same pubescence. Abdomen blackish brown ; the 

 median white stripe continuous, its average width less than 



