loii.] G. RiCARDO : Revision of the species of Tabanus. 215 



It is distinguished from Tabanus subcinerascens, n. sp., b}^ tiie 

 reddish yellow abdomen with black apex, and no grey tomentum, 

 and by the antennae being black at apex. 



Tabanus subcinerascens, $ , n. s]). 

 (PI. xiv, fig. 21.) 



In Brit. Mus. coU. 



Type and three other females from X. Chin Hills, Burma 

 (Watson), 1894. 



This species is very nearly related to Tabanus cinerascens , Bigot, 

 but appears a distinct species, shape of the antennae, forehead and 

 frontal callus being different. 



The third joint of the antennae is wider at the base and the 

 whole joint shorter, the palpi a little stouter. The forehead is 

 broader, almost the same width throughout, barely six times as long 

 as it is broad, the frontal callus is larger, practically reaching the 

 eyes, and is prolonged as a thick spindle-shaped line, reddish brown 

 in colour. 



Thorax and scutellum reddish brown with black pubescence and 

 some yellowish white hairs. Abdomen more uniformly reddish 

 brown, a pale median stripe appears in some lights formed of gre^dsh 

 tomentum with a few scattered yellow hairs which also appear on the 

 segmentations, sometimes forming a narrow fringe chiefly on the 

 apical segments. Legs reddish yellow, femora frequently darker. 

 Length 12-13 mm. 



Tabanus obconicus, Walker. 



Dipt. Saund., i, p. 54 (1850). 



Type cf from Central India. 



One female from India (Wroughton) in Brit. Mus. coll. One 

 female from Bombay and one from Belgatchia, Bengal, in Hewlett 

 coll. cf . A specimen with a 3'ellowish brown conical abdomen, 

 posterior borders of segments covered with grey tomentum. which 

 in the middle reaches the anterior l)order of segment on the 

 third and fourth segments at least, so that the anterior >-('ll<)wish 

 brown part of segment has a zig-zag i)osterior border, the last two 

 segments blackish, the ])ubescence on dorsum black, longer at the 

 apex, and on sides black ; under side yellowish brown covered with 

 grey tomentum, and with scanty black pubescence. The legs are 

 reddish brown, the middle and posterior tibiae more yellowish lirown, 

 the fore coxae with grey tomentum and whitish pubescence. The 

 thorax is reddish brown. The wings hyaline tinged l)rown on the 

 veins, the cross-veins included. The eyes have the large facets on the 

 upper part, reaching just beyond the l)eginning of the frontal 

 triangle, and small ones occupy the lower ])ortion, attainin- the 

 vertex as a narrow border. The antennae are yellowish on the 

 first two joints with black liairs, llie third joint is wholly of an obscure 

 black (whether this is owini; to the 1)ad state of ])reservation of the 



