BY G. H. HARUY. 195 



The wings have a normal venation; the intermediate erossvein is situated 

 at about half the length of the diseal cell, and the second posterior cell is short. 



S. The female is similar to the male and the ovipositor is short. 



Hub. — Tasmania. 



Note. — The collection under revision contains twenty males and eighteen 

 .females, all Tasmanian. Other specimens, labelled N. vulgatus by White belong 

 to widely different species, and are dealt with under their respective names. 



Neoitamus vittipes Macquart. (Text -fig. 9.) 



Asilus vittipes, Macquart. Dipt. Exot., suppl. 2, 1847. p. 43; Walker, List Dipt. 



Brit. Mus.. vii.. suppl. 3, 1855, p. 741. 

 Asilus cognatus, Macquart, Dipt. Exot., suppl. 4, 1850, p. 94. 

 Asilus alicis, Walker, List., Dipt. Brit. Mus., vii., suppl. 3, 1855, p. 738. 

 Neoitamus brunneus, White, Proe. Roy. Soc. Tas., 1913 (1914), p. 279, 1916, p. 



180. 

 Bhabdotoitamus brunneus, White, Proc. Roy. Soc. Tas., 1917, p. 100. 



Synoiujmy. Mac(|nart's types of A. vittipes and A. cognatus are from Tas- 

 mania, and their descriptions conform to two colour forms of White's variable 

 species, N. brunneus, which is the genotype of the subgenus Rhdbdotoitamus. 



Walker's type of .4. aMcis, from Australia, is recorded as lost by Miss Ricardo, 

 and was therefore placed by her amongst the species she proposed to cancel from 

 the list, but the description conforms to Australian specimens of White's geno- 

 type, and in this way establishes its probable identity with A. vittipes Macquart. 



Description, d. The moustache is white, and occupies a moderately large 

 tubercle; occasionally there at-e one or two black hairs above. There is a row of 

 white bristles behind the eyes. 



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

 follows: — two presutural, two superalar, one, rarely two, postalar, and al)out four 

 dorsocentral ; all the bristles black. There are two black scutellar bristles, and 

 the metapleural and hypopleural bristles are white. 



Both sides of each abdominal segment from the second to the fifth contain 

 two long, erect, white bristles; the other abdominal bristles are black. 



The upper forceps of the male genitalia are short, tapering apically. and 

 terminating in a digitate process which branches from the ventral jiosterior angle. 

 The upper and lower forceps are reddish-brown in colour, and are partly dark- 

 ened with fuscous. 



The legs have the anterior femora without spines; the intermediate and pos- 

 terior femora have their system of spines more or less complete. 



The wings have a normal venation; the intermediate erossvein is situated at 

 a little beyond the middle of the diseal cell, and the second posterior cell is sliort. 



?. The female is similar to the male; the ovipositor is short. 



TLab. — 'Tasmania. Victoria, and New South Wales. (January to March.) 



Note. — The collection under revision contains thirteen specimens, four males 

 and one female from Tasmania, three males and four females from New South 

 Wales, and one male without locality. A female from Sydney was labelled by 

 White as his N. brunneus. 



Nkoitajius armatus Macquart. (Text-fig. 10.) 



Asilus armatus. Macquart, Dipt. Exot., suppl. 1, 1846, p. 91, PI. 8, fig. 17; Walker, 



List Dijit. Brit. Mus., vii., suppl. 3, 1855, p. 737. 

 Asilus setifemoratus, Macquart, Dipt. Exot., suppl. 5, 1854, p. 65. 



