278 Miss G. Ricardo on the 



with greyish toraentum and with white hairs on basal half. 

 Beard white. Antenn(n black, the first two joints with black 

 liairs, the third joint with a distinct, very prominent tooth. 



Length 15-18 mm. 



Mac(|uart's original description is as follows: — Elack. 

 Al)domen with segmentations and dorsal spots yellow 

 tomentose, sides with testaceous spots. Antenn;e and legs 

 black. Wings with veins shaded brown. Length 7 lines ( ? ). 

 Palpi almost as long as the proboscis, blackish with grey 

 tumentum. Face and forehead pale grey ; callus blackish, 

 oblongj with a lineal extension. Antennae with a fairly 

 prominent tooth. Eyes naked. Thorax with some grey 

 tomentum ; a testaceous spot, blackish above the wings (?). 

 Abdomen with the second segment obscurely testaceous at 

 sides ; underside with white segmentations, a little testaceous 

 on the borders of the first three segments. Wings clear at 

 base, from the apices of the basal cell all the veins are 

 shaded with brown except at their apices, venation normal. 



Most of the specimens from N. Queensland have the 

 abdomen almost wholly black, not reddish at the sides of 

 the first two segments, and tiie wings are somewhat darker 

 on the fore border. The tooth of the third antennal joint is 

 often as long as the first division of the joint, but all the 

 specimens vary in the length of this tooth, which is always 

 very conspicuous. 



Tabanus sequens, Walker, List Dipt. i. p. 178 (1848). 



Tyi)e (female) from Port Essington, N. Australia. 



Var. B (female) from same locality, and females from 

 S. Queensland [Dr. T. L. Bancroft), 1908; from Ching Do, 

 N. Queensland, 26. 1. 1913 {F. H. Taylor), 1914. 



A small tawny species ; abdomen with a median stripe 

 composed of pale-coloured hairs. Antenna) reddish yellow. 

 Legs blackish, tibiae yellow. 



Length 13 mm. 



Face covered Avith grey 1 omentum and with white hairs on 

 cheeks and lower part of face. Beard white. Pa/pi chamois- 

 coloured, stout at base, ending in an obtuse point ; pubes- 

 cence black. Antenna tawny, the first two joints pale 

 yellowish, with thick black pubescence on their upper borders, 

 apex of third joint dusky, tooth distinct. Forehead rather 

 darker than face, with short black pubescence, parallel, 

 about five times as long as it is wide anteriorly; frontal 

 callus pear-shaped, with short lineal extension, not reaching 

 eyes, reddish brown, shining. Thorax blackish brown, 

 covered with some grev tomentum, leaving three indistinct 



