BY ARTHUR WHITE. 9 



pubescence. Wings with the veins suffused with brown, 

 and a distinct stigma; cubital fork with a recurrent 

 veinlet. 



This species may be distinguished from T. limbatinervis, 

 Macq. (the only other Tasmanian species which has the 

 wing-veins suffused with brown) by the first posterior cell 

 being wide open, instead of closed, and by the much 

 smaller size. Of the mainland species, the only one with 

 which it can be confused is T . victoriensis, Ricardo ; from 

 this it may be distinguished by the presence of a recur- 

 rent veinlet to the cubital fork, the smaller size, and 

 brown instead of black colouration. 



T . tasmaniensis is apparently a local species. It occurs 

 sparingly in the bush at Bagdad during February. 



Tabanus antecedens, Walk. 



A common, medium-sized, black and brown, black and 

 grey, or slate-coloured species. Vertex bearing long black 

 hairs; antennae with first joint dark red or grey, second 

 and third black ; thorax olive-black, with four grey 

 stripes ; abdomen bx*oad and flattened, black, with shoul- 

 ders of second segment, and hindmargins of second and 

 following segments very narrowly brown or grey ; femora 

 black, tibias brown, the pubescence of the tibiae of very 

 unequal length; wings hyaline. 



Length. Female, 12-14 mm., usually about 13 mm. 



ITab. Generally distributed. 



Female. Face pale grey ; beard scanty, white. Frontal 

 stripe narrow, broadening gradually from the vertex to 

 the frontal triangle, black, dusted with grey, the lower 

 part forming a shining black callus ; frontal triangle pale 

 grey. Vertex bearing long black hairs. Palpi light yellow- 

 brown, occasionally grey or pale orange, always more than 

 half the length of the proboscis. Antennae with the first 

 joint dark red, occasionally grey, second and third black, 

 the first two joints with long black hairs. Eyes hairy. 

 Thorax olive-black, with four conspicuous pale grey stripes, 

 the whole bearing long l^ack pubescence. Abdomen black, 

 with shoulders of second segment, and hindmargins of 

 second and subsequent segments very narrowly pale 

 reddish-brown or grey; there is also, in life, a row of 

 pale centre-spots, but in dried specimens these are usually 

 wanting ; under-surface of abdomen grey. Legs with 

 femora black, tibiae brown or red-brown, tarsi black ; the 

 tibiae bear black pubescence of unequal length, some short 

 and some long, which is one of the distinguishing charac- 

 teristics of the species, also some short white pubescence. 



