278 Miss G. Ricardo on the 



colour, with a few black hairs only. Forehead parallel, 

 about four times as long as it is broad; when denuded a 

 dark callus appears, but in the type there is hardly a trace 

 of one. Eyes hairy. Thorax blackish, covered with fulvous 

 or grey pubescence. Scutelhim identical. Abdomen with a 

 blackish ground-colour, covered with greyish tomentum and 

 with short yellowish-grey pubescence, and some longer 

 black hairs interspersed ; the posterior borders of segments 

 reddish yellow, and the first two segments the same colour 

 at the sides ; underside very similar. Legs reddish yellow ; 

 coxa? black, covered with grey tomentum and with white 

 hairs ; femora blackish, reddish yellow at extreme base and 

 at apex, covered with grey tomentum and white hairs ; 

 pubescence elsewhere yellowish, with some few black hairs. 

 Wings clear, veins yellow, appendix present. 



Three females from Bellerive, Tasmania, Feb. 13, 1914, in 

 Mr. White's Coll., are identical, but the third joint of an- 

 tennae is wholly black. 



Tabanus. imperfectus, ? , Walker, List Dipt. i. p. 179 (1818). 



Type (female) from New South Wales, and two females 

 from Mangalore, Tasmania ; presented by Mr. Arthur 

 White. 



A blackish species, smaller than Tabanus aniecedens, 

 Walker, and the frontal callus is very much larger, taking 

 up the whole of the anterior half of the forehead, with no 

 lineal extension. 



Length of type 10 mm. ; the other females are somewhat 

 smaller. 



Face covered with grey tomentum and with long white 

 hairs, some black hairs intermixed. Palpi [tale dull yellow, 

 very hairy, a little stout at base, with long black hairs above 

 and white ones below. Antenna in type destroyed, in the 

 other females they are blackish ; the first two joints with 

 some black hairs, the third with a small angle to represent 

 the tooth. Eyes hairy. Forehead broader anteriorly than 

 at the vertex, about a third as wide (anteriorly) as it is long. 

 Frontal callus reddish brown, extending from eye to eye and 

 reaching more than halfway down the forehead ; at its poste- 

 rior end it becomes narrower, ending in a very obtuse point; 

 some black hairs are present on sides of forehead, which is 

 covered posteriorly with grey tomentum. Thorax black ; 

 in the fresh specimens two narrow grey stripes are apparent, 

 very short, not reaching the median suture ; shoulders 

 and the sides greyish, pubescence short, black, longer on 



