170 
G. RICARDO 
then blackish, the median yellow haired stripe narrower than in the 
female ; underside reddish yellow, a little darker at apex. Legs more 
wholly reddish yellow. Wings tinged yellowish, no appendix is present. 
Length. 14*5—16 mm. 
10. Tabanus crassus Walker. 
Three male from Takao (27. VII. 1907) and Lake Candidius (X. 
1907). 
11. Tabanus sanguineus Walker. 
One female from Takao (10. VI. 1907). 
12 . Tabanus exoticus n. sp. c? £. 
Type (male), Type (female) and a series of males and females from 
Fuhosho, Koshun and Alikang. 
A large blackish brown or reddish brown species in general 
appearance rather resembling Tabanus sanguineus Walker, from which 
it is at once distinguished by the dark not white base of tibiæ. Ab¬ 
domen with greyish yellow median spots and narrow bands. Forehead 
narrow. Legs blackish. Length 17—21*5 males, 19-—21*5 mm. females. 
5 . Face covered with greyish tomentum, more yellowish brown on 
the cheeks, some blackish hairs in centre below antennæ, elsewhere white. 
Beard white or yellowish. Palpi reddish yellow, almost the same 
width throughout, with short black pubescence. Antennæ dull reddish 
brown, the third joint broad at base with a distinct tooth, the first two 
joints with black pubescence. Forehead narrow, about eight times as 
long as it is broad, and a third narrower anteriorly. Frontal callus 
blackish, oblong, narrow, not reaching the eyes, with a lineal exten¬ 
sion. Forehead with some black pubescence. Thorax brownish, with grey 
tomentum, a few fulvous hairs are intermixed with the black pubescence. 
Scutellum the same. 
Abdomen blackish brown, with a grey tomentose median triangular 
spot on each segment, each spot clothed more or less with short yellow 
hairs, the posterior borders of segments grey tomentose, widest at the 
sides, with yellow hairs, most numerous at the sides; underside the 
same but with no median spots ; dorsum of abdomen with short black 
pubescence, sides with yellow and black hairs. Legs dark, the femora 
blackish with grey tomentum and black pubescence, on their upper and 
lower borders with yellowish hairs, the fore coxæ covered with grey 
tomentum and with yellow hairs, tibiæ dark reddish, the tarsi blackish, 
both with black pubescence. Wings tinged yellowish brown, the veins 
brown, an appendix present, the first posterior cell often a little narrowed 
at border. Two females are much redder brown in colouring on the 
abdomen. 
