igii.] G. RicARDO : The Oriental Tabanidae. 389 



second segment but not converging so much towards each other, 

 the scattered pubescence on all the specimens yellowish. Legs 

 reddish yellow, knees darker, base of hind femora blackish. 

 Wings with the usual band and apical spot; the shape of the 

 former is somewhat peculiar, projecting on its outer border towards, 

 but not attaining, the fork of the third vein; in the first posterior 

 cell it becomes concave, then slightly convex till it reaches the fifth 

 posterior cell, where the sinus is not ver^^ marked, and follows the 

 fifth vein; it is narrow in width, only filling the discal cell, not 

 encroaching on the basal cells at all, and filling the fourth 

 posterior about half-wa}'' up; the basal cells have only dark shad- 

 ing at their extreme base ; the apical spot is the same width 

 throughout, only crossing the anterior branch of the third vein at 

 its apex. 



or' . vSimilar. Eyes with the upper half composed of larger 

 facets. Abdomen in one specimen has the first segment almost 

 entirely black, and the rest of abdomen reddisli yellow with black 

 oblique spots on each side, surrounding the grey triangular spots. 

 Wings similar, centre of discal cell sometimes paler. 



Chrysops stimulans, & , Walker. 

 (Plate XV, fig. 5.) 



Dipt. Saund., i, p. 73 (1850); id., List. Dipt, v, Suppl. i, 

 p. 265 (1854); Ricardo, Ann. Mag. Nat. Hist. (7), ix, p. 376 

 (1902). 



Type (male) from East India, Saunders coll. ; two males and 

 one female from Pusa, Bengal, in Mr. Hewlett's coll 



A small blackish species, the female lighter in colouring, 

 easily distinguished b}' the markings of the wings, having a round 

 clear spot in the discal cell in the middle of the dark cross-band 

 and a narrow apical spot in the inner border of which is a clear 

 small oblong spot reaching the anterior branch of the third vein. 

 Male with a black abdomen, marked with three spots on each of 

 the anterior segments, the female with the abdomen greyish and 

 two median united spots on the second and third segments, 

 lycngth of males 6 — 8 mm., female 8 mm. 



cf . Face covered with grey tomentum, the facial tubercles 

 black shining, reaching the oral opening leaving the centre of the 

 face with a broad grey stripe, a black, narrow spot on each lower 

 cheek reaching from the eyes to the oral opening, pubescence 

 below pale yellow. Palpi yellowish brown with black pubes- 

 cence. Antennae blackish brown, the first joint slightly incrassAte 

 with black pubescence, the second and third joints cylindrical, with 

 less pubescence, the first two joints are about equal in length, the 

 third a little longer than either. Frontal triangle grey, sub- 

 triangular. Eyes only meeting at one point beyond, vertex large 

 with the ocelli distinct. Thorax blackish with grey tomentum 

 sometimes appearing as stripes and with black pubescence. 



