iQii ] O. RiCARDO : Revision of the species of Tabanus. 209 



black pubescence, the third joint long, slender, the tooth near the 

 base distinct, crowned with a few black hairs. Forehead narrow, 

 about seven times as long as it is narrow, very slightly narrower 

 anteriorly, the frontal callus dark reddish brown, narrow, oblong, 

 not reaching the eyes, prolonged as a narrow raised line towards the 

 vertex , hairs on forehead black. Thorax brown with yellowish brown 

 tomentum and scattered black pubescence, a few appressed pale 

 yellow hairs are visible, chiefly on the anterior half of dorsum 

 and at sides. Scutellum similar. Abdomen dull reddish, appearing 

 darker owing to the close short black pubescence, segmentations 

 obscurel}' yellowish or lighter, a few white hairs at the sides of abdo- 

 men; under side brown, but with grey tomentum on the sides 

 and the segmentations, which latter are wider and more distinct, 

 the pubescence black. Legs with black pubescence, but the fore 

 coxae with long white pubescence, the fore tibiae reddish at base, 

 the others reddish brown. Wings with brown veins and stigma, 

 tinged with brown on the fore border becoming paler on the 

 posterior border. 



Tabanus atrohirtus, ? , n. sp. 



In Brit. Mus. coll. 



Type 2 and three other females from Ceylon (Yerbury coll.). 



This species is very nearly related to Tabanus leucohirtus, n. s])., 

 but appears a distinct species differing in the following particulars. 



The face is covered with yellow-brown tomentum similar to the 

 forehead and subcallus. The beard is wholly brown and thicker, 

 and no white hairs visible on the face. The forehead narrower, 

 being about ten times as long as it is narrow, and narrower 

 anteriorly, the frontal callus longer and narrower. 



The thorax is more tliickh^ covered with the short appressed 

 yellow hairs, as is the scutellum. The abdomen appears darker, in 

 the type almost black, owing to the thicker short black pubes- 

 cence lying all over the dorsum, in the other specimens this pubes- 

 cence is not quite so thick and shows the red-brown ground 

 colour of the abdomen, the same colour as Tabanus leucohirtus; 

 under side has no light tomentum or pubescence but is similar to 

 the dorsum. The fore coxae have black pubescence. Length 

 18 — 20 mm. 



Tabanus pallidepectoratus, 9 , Bigot. 



Mem. Soc. Zool. France, v, p. 658 (1892). | -:I/\'/o/?^s. 1 



Type female from Saigon, Cochin China. 



No other specimens of this s])ecies identilied in the collections 

 mentioned in this paper. 



Type in fairly good preservation is a robust reddish yellow Uy, 

 with a very narrow forehead and frontal callus reddish antennae, 

 yellow palpi, black legs, only the tibiae whitish at the base, and 

 clear wings tinged yellowish brown. Length 19 mm. 



It is nearly allied to Tabntius joidus, Bigot, from Assam, l)ut 



