TABANIDAE FROM FORMOSA. 
171 
d ' . The males are all reddish brown, like the two females : Eyes 
with the large facets occupying quite two thirds of their surface, reaching 
the apex of frontal triangle, but not attaining the vertex, a very narrow 
border of small facets beeng apparent at vertex and gradually becoming- 
wider. Palpi yellow with black hairs. Face yellower, and the hairs on 
it cheefly pale. Antennae bighter red. 
Abdomen reddish brown, the last two segments darker, the spots 
and narrow bands more yellowish or yellowish red than grey. Wings 
with appendix not always present. 
13. Tabanus Sauteri n. sp. cT Ç . 
Type (female) from Fuhosho, Formosa and other females from 
same locality. Type (male) from Fanano-Tacko, Formosa. 
A blackish medium sized species with greyish withe bands and 
spots near Tabanus khasiensis Ricardo (Records Indian Museum, 
IY, p. 193, 1911) but distinguished from it by the dark wings, yellow 
beard and scutellum uniform in colour with no white pubescence. Length 
15*5—16*5 mm. 
5 . Face covered with greyish yellow tomentum, above the antennæ 
brown, a few black hairs below the antennæ in centre and on upper 
cheeks. Beard pale yellow. Palpi blackish, almost uniform in size, ending- 
in a short point, with some greyish tomentum and with black pubescence. 
Antennæ black, the first two joints with black hairs, the third 
with a distinct tooth. 
Forehead the same colour as above antennæ, narrow, about eight 
times as long as it is broad anteriorly, nearly parallel, the frontal callus 
black, shining, oblong with a short prolongation ending in a point, not 
reaching the eyes. Thorax brownish with some grey tomentum, pubescence 
black, the breast and sides pale greyish yellow with yellow hairs. 
Scutellum brown covered with greyish tomentum. 
Abdomen black with narrow grey tomentose bands on each segment, 
widening in the middle of the second to a large triangular spot, but in the 
following ones only appearing as small truncated spots, pubescence black, 
a few glistening white hairs on centre spots ; underside with broader 
bands not extending into median spots, clothed with white hairs. 
Legs black. Wings dark brown, becoming paler on the posterior 
border and at apex, veins brown. 
cf. Similar to female. The large facets of eyes hardly reach the 
vertex, but attain the base of the frontal triangle. Antennæ have the 
third joint reddish. Wings with the dark colour less extended, leaving 
the apex quite clear. 
