194 



AUSTRALIAN FLIES OF THE FAMILY ASLLIDAE, 



In the eolleeticn under revision, there is a male cotype of N. vulgatus Whitf, 

 and this is identical with a male of a pair taken in copula, and thus establishes 

 the sex relationship; the female has a short o\-ipositor, not long, as stated by 

 White in his description. 



New South Wales specimens identified by White, and represented by various 

 specimens in the collection under revision, have longer ovipositors, and there- 

 fore N. vulgatus var. White cannot belong to the same species, and, moreover, N. 

 vulgatus White is only known from Tasmania, although White's description 

 covers more than one species occurring on the mainland of Australia. 



Description, d". The tubercle of the face is large, and the moustache con- 

 sists of white hail's below, and black liaii-s above: sometimes there is a lateral 

 row of small black hairs bordering the white hairs. Behind the eyes there is a 

 row of black bristles. 



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

 follows: — two presntural, two superalar and two postalar, and, besides these, 

 there may be one or two extra presntural and superalar bristles present, and also 

 an extra postalar l^ristle; about six doi-socentral bristles alternating with black 

 hairs; all bristles black. The two scutellar and the metaplonral bristles are black, 

 the hypopleural bristles are mostly white. 



THxt-tigs. 7-8. — Neoitamiis fratfruits. 

 7, male genitalia ; 8, female ovi- 

 positor, (x 2.5). 



Text-fig. 8. — Neoiiamus vitiipes, 

 male genitalia, (x 25). 



Text-fig. 10. — Neoilaiitiis aniia/iis, 

 male genitalia, (x 25). 



The bristles of the abdominal segments are mostly white, and there are two 

 erect, white, lateral bristles on the second to fifth segments. The upper forceps 

 (if the male genitalia arc elongate, and have a digitate apical proiess which 

 branches about the middle of the apical border; seen laterally they are more or 

 less parallel-sided. 



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

 terior femora have the system of spines more or less complete; these spine systems 

 are explained in the introduction. 



