Tabaiiidaj of ike Australian Reijion. 273 



liave black hairs. Forehead parallel, about five times as 

 long as it is wide anteriorly, same colour as face with 

 whitish hairs ; frontal callus reddish yellow, pear-shaped, 

 not reaching eyes, with a short lineal extension. Thorax 

 (denuded) reddish, with three narrow grey tomentose strijjes. 

 Scutelium identical. Abdomen broad, short, the spots are 

 triangular, covered with whitish toraentum, commencing 

 from the second segment ; underside blackish with grey- 

 haired seguientatioiis. Legs : femora reddish brown ; tibiie 

 pale whitish yellow ; tarsi a little darker. Wings large, no 

 appendix. 



Tabanus prcepositus, Walker, List Dipt. i. p. 158 (1848). 



Type (female) and another female from Port Essington, 

 and a female from locality not specified. 



The varieties B. and Y. mentioned by Walker do not 

 appear to be in the Brit. Mus. Coll. 



A reddish-yellow species with indistinct black spots on the 

 abdomen, palpi very pale, stout at base, ending in a long 

 point. Antenna; and legs reddish yellow. 



Length, type, 18 mm. 



Face covered with pale greyish-yellow tomentum, hairs 

 pale yellow. Palpi very stout on basal half, the apical part 

 about the same in length as the basal part, pubescence con- 

 sists of a few black hairs and some yellow ones at base. 

 Beard yellowish. Antenna reddish, the basal joints pale 

 yellow with black pubescence. Forehead almost parallel, 

 the same colour as face, about six times as long as it is wide 

 anteriorly ; frontal callus dark brown, oblong, not reaching 

 the eyes, with a lineal extension. Thorax blackish, covered 

 with grey tomentum, pubescence chiefly black, shoulders 

 pale reddish. Scutelium identical. Abdomen tawny, a dull 

 black median triangular spot on the second segment, in the 

 two other females there is a similar one on the second seg- 

 ment, and another on the third segment in type and other 

 females, the remaining segments with larger more band-like 

 spots on the anterior borders, pubescence consists of short 

 yellow and black hairs; underside pale reddish yellow with 

 grey tomentum. Legs uniformly reddish yellow. Wings 

 clear with reddish-yellow stigma and veins, no appendix 

 present. 



Tabanus innoiabilis, Walker, List Dipt. i. p. 177 (1848). 

 Tabanus dorsobimcaidatiis, Macq. Dipt. Exot., Suppl. iv. p. 29 (18o0), 

 Type (of T. iwiotabUis) and another female in Brit. Mus. 



