Tabanidie of (he Australian Region. 31 



Diatomineura testacea, $ , Macq. Dipt. Exot. i. p. 103 (1838) 

 [Pangonia] ; Ricardo, Ann. & Mag. Nat. Hist. (7) v. 

 p. 113 (1900). 



This species and the two following new species, D. Mon- 

 tana and D. injiata, are all nearly related, with abdomen 

 almost wholly reddish yellow ; wings clear, with no appendix. 

 Antennae and legs yellow. The species may all be recog- 

 nized by the different form of the palpi in each. 



Macquart's type is probably lost. The following is his 

 description : — 



" Testaceous. Antennas red. Eyes hairy. Legs red. 

 Wings with no appendix ; the first posterior cell half open. 

 Length 12 mm., ? . Proboscis black, 3 mm. long, a little 

 stout, with the terminal lips swollen. Palpi tawny, of the 

 usual form. Face not protuberant, yellowish grey. Fore- 

 head brownish tawny, with no callus. Antennas bright 

 tawny. Ocelli present. Thorax tawny, with brown stripes ; 

 sides with yellowish-grey hairs. Abdomen testaceous red, 

 unicolorous ; underside a light yellowish grey, a little 

 greenish. Legs tawny. Wings greyish, at base yellowish ; 

 the second submarginal cell with no appendix ; the first 

 posterior cell half open." 



One male and one female in Brit. Mus. Coll. from Ku- 

 randa, Queensland (F. P. Dodd), 1914, 281. Two females 

 in German Ent. Museum from Cairns, Queensland, and 

 Kuranda, Queensland (F. P. Dodd), Sept. 1910. 



A male and female in Mr. Wainwright's Coll. also from 

 Kuranda by the same collector. 



The palpi are long and slender, more than half the length 

 of the proboscis, wide on the basal half, with the upper 

 border curved, but ending in a fairly long fine point, orange- 

 rufous in colour, with scattered, black, short pubescence. 

 Face covered with yellowish-grey tomentum, in the centre 

 raised a little beneath the antennas, on the lower half more 

 concave than convex, separated from the cheeks by a deep 

 furrow ; some long dark hairs are visible on the sides of the 

 centre of face and yellowish hairs on the lower part of 

 cheeks ; the beard is also yellowish white. 



Antenna orange-rufous, the first two joints pale yellow, 

 with black hairs. Forehead parallel, about five times as long- 

 as it is broad, with no distinct callus, but owing to denuda- 

 tion a central black line is often visible ; colouring is a shade 

 darker than the face, with some short black hairs. Eyes 

 hairy. Thorax reddish brown, covered with yellowish-grey 



