348 GERTRUDE RICARDO, NOTES ON TABANI ETC. 
Tabanus univentris Walker, a female from Semarang, Java. 
Tabanus simplicissimus Walker, females from Borneo and 
Batavia. 
From Celebes there is a female of Walker’s Tabanus speculum, 
and several females of the following Walker species from Java: 
Tabanus Aumillimus, Walker, Trans. Entom. Soc. London, 
n. ser. IV, p. 124 (1857). Type (a female) and another in Brit. 
Mus. Coll. In Prof. de Meyere’s Coll. are a series of females 
from Java which are identical with the type from Celebes. 
A blackish brown small species, not unlike Tabanus virgo, 
Wiedemann, but distinguished from it by the presence of a 
distinct callus on the forehead which is narrower in this 
species and the markings on the abdomen are different. No 
other species from the Oriental Region has yet been described 
with one frontal callus, inprovided with any lineal extension. 
Legs and antennae yellow. Wings clear. Length 9-9! mm. 
Face covered with ashy grey tomentum, the subeallus with 
yellowish brown tomentum, similar to the forehead; hairs on 
face white and thick. Beard white. Palpi very pale yellow or 
whitish with thick pubescence, short and black above, longer 
and white below, stout at base, ending in a fine point. 
Antennae light reddish yellow, short, the first two joints 
with few black hairs, the third joint broad on its first 
division, but the tooth very slight. Forehead about six times 
as long as it is broad and more than a third narrower 
anteriorly than at vertex, the frontal callus shining, reddish 
brown, almost square, far from the eyes on each side, with 
no lineal extension, forehead with some black pubescence. 
Thorax blackish brown, covered with short white appressed 
pubescence, a few black hairs intermixed and at sides. 
Seutellum the same. Abdomen blackish brown, with indistinct 
traces of reddish or paler lateral spots, dorsum with scattered 
white hairs similar to these on thorax and black pubescence; 
underside paler with white hairs. Legs yellowish, femora and 
