New Australian Tdburtidae. 19 



Tabanus latifrons, n. sp. (Plate II-, Fig. 1). 



Allied to T. antecedents, Walk., but with -broader forehead. 

 cfLong: — 12 mm.; width of head 5 mm.; wing 10.5 mm.; 

 '$ Long: — 13 mm.; width of head 5 mm. 



$ Black ; face, cheeks and subcallus black, reddish brown above 

 proboscis, densely clothed with white tomentum, and with long 

 pubescence, white below, dark above and on subcallus, the latter 

 not markedly tumid nor shining. Palpi dusky, lighter at apex, 

 moderately thicjvenecl at base, with dark grey tomentum and mixed 

 pale and dark pubescence, iong and somewhat straggling at base, 

 shorter at apex. Antennae black, first and second joints grey, 

 and clothed with long dark hair like pubescence, third joint 

 broad at base* prominently angulate above, annuli somewhat 

 shorter than basal portion. Forehead very broad anteriorly, dis- 

 tinctly narrowed to vertex, about twice as long as it is wide 

 anteriorly; densely clothed with dark brown tomentum, slightly 

 variegated with grey, and with long dense dark hairs, longest 

 and most dense at the vertex; callus transverse or subquaderate, 

 reaching eyes without lineal extension, black. Eyes densely 

 pubescent, the pubescence long, light brown with grey reflec- 

 tions from certain directions. Thorax .black, shoulders reddish, 

 densely clothed with black tomentum with a narrow indistinct 

 grey tomentose stripe on each side of median area most evident 

 anteriorly, and two indistinct' lateral stripes most distinct pos- 

 teriorly ; dorsum densely clothed with long erect black pubes- 

 -cence, and with scattered white decumbent pubescence, most dis- 

 tinct posteriorly. Sides black with long pubescence, mostly, 

 white, but dark in centre. Scutellum black, fringed on each 

 side with long white pubescence. 



Abdomen subparallel, black, segmentations dark grey, hardly 

 lighter than rest of dorsum, densely clothed with semi-erect 

 black pubescence, with small white pubescent spots on all seg- 

 ments except first, most distinct on 2-5 ; the lateral and postero- 

 lateral margins of segments from the second also fringed with 

 white pubescent hairs. Venter black with dark grey tomentum, 

 and densely clothed .with long erect black hairs, posterior mar- 

 gins of segments with short depressed white pubescence. 



Legs dark, femora black, tibiae dark reddish brown, the inter- 

 mediate lighter in colour, and the anterior black at apex; tarsi 

 black; femoral pubescence mostly dark, pubescence on posterior 

 tibiae irregular as in T. antecedens. 



3A 



