202 AUSTRALIAN' FLIES OF THE FAMILY ASILIDAE. 



The dorsal thoracic bristles are disposed on each side of the median line as 

 follows: — two superalar, and anterior to these there is a third but very weaK 

 bristle; the postalar are represented by three in the holotype and two in the para- 

 type; about live dorsocentral; all these bristles are black. The two scutellar and 

 the metapleural and hypopleural bristles are black. 



The abdominal bristles are mostly black, but some white occur laterally. The 

 ovipositor is short and compressed; the lamella is cylindrical, stylifonn, and 

 slightly longer than usual in the genus. 



The leg's have the anterior femora without spines; the intermediate femora 

 have about four conspicuous black spines on the anterior side and one subapical 

 spine on the posterior side; the posterior femora have about three subapical si>ines 

 and a few black spines on the anterior side, and also a row of white, ventral, 

 bristle-like spines. 



The wings have a normal venation ; the intermediate crossve'n is situated at 

 about two-thirds the length of the discal cell and the second posterior cell is rather 

 short and slightly constricted subapically. Fuscous spots are present in the usual 

 positions ; one each at the apices of the marginal, first and second basal, and the 

 discal cells, and also one at the cubital fork. 



(3. The male is unknown. 



Hob. — Western Australia: Armidale and Darlington, near Perth; King 

 George's Sound. 



Type. — The holotype, in the Australian Museum, was taken at Armidale on 

 1st October, 1912. The paratype is smaller and was taken at Darlington on 7th 

 October, 1912. 



Note. — Two female specimens, from King George's Sound, are in the Aus- 

 tralian Museum collection, and agree with the type. This makes four specimens 

 so far known, l)ut it is jii'obably quite a common species. 



Neoitamus mistipes Macquart. 



AsiJus mistipes, Macquart, Dipt. Exot., suppl. 4, 1850, p. 94. PI. 9, fig. 3 (wing). 

 Neoitamus graminis, White, Proc. Roy. Soc. Tas., 1913 (1914), p. 278; 1916, 



p. 179. 

 Rhtibdotoitamus graminis, White, Proc. Roy. Soc. Tas., 1917, p. 99. 

 Jf Neoitamus mistipes, Ricardo, Ann. Mag. Nat. Hist., (8), xi., 1913, p. 433; 



White, Proc. Roy. Soc. Tas., 1913, p. 275 (in key). 

 ffRhabdotoitamus mistipes, White, Proc. Roy. Soc. Tas., 1917. j>. 100. 



Syiwni/mi/. — Asilus m>isti2Jes Macquart is described from Tasmania, and the 

 description agrees with White's R. graminis. 



Miss Ricardo described a species from Mt. Gambier, South Australia, and 

 refen-ed it to Macquart's name. White overlooked Macquart's locality, and in his 

 references he refers to Miss Ricardo's description only, using the locality given 

 there. It is doubtful if Miss Ricardo's species is the same as Macquart's. 



Unfortunately there is not a specimen of 7?. graminis White in the collection 

 under revision, nor a specimen of N. mistipes Ricardo from Soutii Australia, 

 nevertheless the above synonymy appears to be convincing enough from a com- 

 parison of their respective descriptions. 



