Tabanidae of the Australian Region. 261 



and the subcallus and frontal callus are darker in colour ; 

 the spines on hind tibiae are present, though small ; in the 

 type the hind legs are destroyed. 



Length of type 114 mm.; otlier female 13, and its pro- 

 boscis 3 mm. 



Silvius doddi, ? , sp. n. 



Type ( ? , from Mr. Wainwright's Collection) from Ku- 

 randa, Queensland, Sept. 1910 (F. P. Dodd), and another. 

 Two females in German Ent. Museum Collection from 

 Herberton, 3700 ft. {Dudd), and Cairns, N. Queensland ; 

 also a male from Herberton. 



A small yellowish-brown species; antennae and legs 

 yellowish. Wings tinged yellowish brown. 



Length 9^ mm., others 8 mm. 



Face brown, with some paler tomentum and brown hairs on 

 cheeks ; furrows on each side of face deep, beard brownish. 

 Palpi slender, the same width throughout, curved, yellowish, 

 with dense but short dark pubescence, not quite so long as 

 the proboscis. Antenna bright reddish yellow, the first two 

 joints paler yellow, with black pubescence, the third joint 

 with the first division wide, the angle representing the tooth 

 on the middle of upper border, the last four divisions small 

 and narrow. Forehead almost parallel, slightly wider ante- 

 riorly, more than four times as long as it is wide, yellowish 

 brown, with some blackish hairs, the frontal callus brown, 

 almost lineal, the ocelli prominent. Thorax and scutellum 

 reddish brown, with traces of grey tomentum and with 

 scattered short yellow hairs ; sides and breast the same, 

 with black hairs. Abdomen yellowish or reddish on the first 

 three or four segments, then becoming dark brown with 

 the segmentations greyish and the sides yellowish ; the 

 brown colour appears more or less on the paler segments ; 

 pubescence chiefly black and unnoticcable, some yellow hairs 

 fringing the posterior borders of the last segments ; under- 

 side yellowish, dark at apex. Legs reddish yellow, with 

 black pubescence. Wings tinged most deeply on anterior 

 part ; stigma brown, veins yellowish, with a short appendix, 

 not always present. 



The. male is darker, the palpi with long black hairs, 

 conical in shape, the face with some long hairs. Eyes 

 distinctly pubescent, the hairs reddish. Thorax blackish 

 (perhaps discoloured). Abdomen with the first segment 

 black. Legs with the femora blackish. 



