166 F. H. Taylor : 



Legs black, pubescence black. 



Wings, — Basal half grey, rest clouded with black; veins black;; 

 stigma black; no appendix. 



Habitat.— ^ovt\\Q\n Territory, Bathurst Island (G. F. Hill), 



A very distinct and easily recognised species belonging to the- 

 nigrapennis-fergiisoiii group. 



Type in Coll. Hill, paratype in Coll. Taylor. 



Sub-Family Tabaninae. 

 Genus Tabanus. 



Group VII. Abdomen, with one or more stripes, usually con- 

 tinuous. 



Tabanus geraldi, sp. nov. 



, Length, 17; length of wing, 14; width of head, 5.75. 



$ Head. — Face and lower half of cheeks covered with grey 

 tomentum, upper half of cheeks and subcallus, with dull golden, 

 tomemtum; beard grey; front parallel with creamy tomentum and 

 pubescence; vertex dusky; frontal callus small, pear-shaped, lineal 

 extension reaching thci middle of the front; first joint of antennae- 

 reddish-brown, pubescence grey, long, second joint black, very 

 short, third joint black, base with a small, prominent tooth ; palpi 

 creamy-yellow, stout, ending in a blunt point, pubescence short,, 

 black mixed with pale at the base. 



Thorax black, tomentum dirty grey, grey above wing roots,, 

 pubescence black and golden, grey above wing roots, black on 

 sides; scutelum black, pubescence black, grey on posterior border; 

 pleurae grey with grey pubescence. 



Abdomen black, with dense black pubescence, with a median grey 

 stripe terminating on the penultimate segment, lateral margin 

 with dense, grey pubescence, sides of segments three to five yel- 

 lowish ; venter slate coloiired with grey pubescence. 



Legs black, basal third of fore tibiae reddish, mid and hind 

 tibiae, except the apices, pale reddish-brown, pubescence grey on 

 femora and tibiae, black on tarsi and apex of tibiae. 



Wings clouded with yellowish on the veins except on the marginal 

 cells; veins black, stigma reddish; no appendix. 



Habitat.— ^ort\iQYii Territory, Bathurst Island (G. F. Hill). 



A beautiful and very distinct species, quite unlike any other 

 Rnown Australian Tabanns. 



Type unique in Coll. Hill, to whom it is dedicated. 



