438 



MAJOR E. E. AUSTEN. 



Pretty little species, with, in 9, two frontal calli, bare eyes having apparentlv a single 

 transverse purple band on level of lower callus, brightly marked body, and parti-coloured 

 legs. — Pleurae light greyish-olive pollinose, scutellum pale olive-buff pollinose, both 

 clothed conspicuously with pale yellowish hair ; dorsum of abdomen mainly chestnut 

 brown at base, then black or blackish-brown, third and fourth [visible) tergites each with 

 a very conspicuous, pale [olive-buff pollinose) hind border, clothed with appressed 

 glistening yellowish hair, and in each case expanded in middle into a ivide, low triangle. 



Head : Subcallus (in all five specimens available for comparison) shining russet- 

 brown or mummy-brown, sometimes with a small, blackish-brown, median spot above 

 bases of antennae ; front greyish-olive pollinose, darker above, face and jowls pallid 

 neutral grey pollinose, clothed with yellowish hair, upper extremities of sides of face 

 immediately below subcallus usually mummy-brown pollinose, occiput smoke-grey 

 pollinose, thinly clothed with pale yellowish hair, posterior orbits on each side of 

 vertex fringed behind with minute black hairs mixed with minute, glistening yellowish 

 hairs, posterior orbits elsewhere fringed with minute, glistening yellowish hairs ; 

 front, in ? of moderate width, somewhat narrower below than above, and in length 

 equal to from five to six times its breadth between lower inner angles of eyes, clothed 



Fig. 2. Head of Tabanusinsidiator, Ayi.stQ-a,s-p.i\., ^ ; «, front view ; b, profile. 



above with minute black hairs which are longer on vertex, where there is an ill- 

 defined dusky patch but no trace of an ©cellar tubercle ; frontal calli (see fig. 2a), 

 blackish-brown (lower callus sometimes reddish-brown), lower callus shield-shaped 

 or quadrate, its lower margin (except point if shield-shaped) a little above level of 

 lower inner angles of eyes, upper callus elongate quadrate or roughly elliptical, 

 sometimes divided in middle line above, and in some specimens drawn out into a 

 point below, or with a lower median extension which may or may not reach lower 

 callus ; palpi, neutral grey or deep neutral grey on outer, pallid neutral grey on inner 

 surface, distal segment bluntly acuminate, moderately swollen at base, proximal seg- 

 ment, base and proximal two-thirds of lower margin of distal segment clothed with 

 yellowish hair, outer surface of distal segment clothed elsewhere with minute, ap- 

 pressed black hairs ; first two segments of antennae pale ochraceous-tawny, expanded 

 portion of third segment tawny or russet, annulate portion cinnamon-brown, second 

 segment and upper portion of first segment clothed with minute black hairs, first 

 segment clothed below with yellowish hair and considerably swollen distally, having 

 its upper distal angle moderately produced and partly embracing second segment, 

 upper distal angle of latter small and not conspicuously elongate, expanded portion of 

 third segment of moderate depth, varying from one-fourth as long again to nearly 

 twice as long as annulate portion, angle on upper margin near base conspicuous 



