BY G. H. HAliPY. 193 



superalar. The postalar bristles are three in niuuber, aud tlie dorsocentral 

 bristles are represented by a complete line of mixed hairs and bristles that do 

 not conform to the usual alternating hair aud bristle order. The scuteUum has 

 six marginal bristles. All the bristles, including the hypopleural and mctapleural, 

 are black. 



The bristles on the abdmnen are lung aud umstly white; they are very pruiu- 

 inent as far as the iifth segment. The upper forceps of the male genitalia are 

 long, and seen laterally the apical half is swollen, and terminates in a digitate 

 process which branches about the middle of the apical border. 



The legs have the anterior femora w-ithout spines; the intermediate femora 

 have, besides the complete sj'stem of spines, a second row of spines on the an- 

 terior side. The posterior femora have a complete system of spines. These 

 spine systems are explained in the introduction. 



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

 about half the lengih of the discal cell; the second posterior cell is I'ather long 

 and slightly constricted subapically. 



2. The female api)ears to l)e similar to the male, but the bristles arc some- 

 what flattened aud broken. The sixth abdominal segment is partly bare of to- 

 mentum, and appears to be slightly compressed. The seventh abdominal segment 

 is sub-compressed, bare and shining, and as long as the moderately long ovipositor 

 which has a terminal stj^le-like lamella. 



Hab. — Tasmania: Cradle Mt. (January, 1917, 1 male, 1 female.) 



Note. — The collection under revision contains only two specimens that can 

 be referred to this rare species. The identification is probably correct, as the 

 specimens agree entirely with White's description. The female ovipositor (text- 

 flg. 5) is drawn as it appears on the insect, and it seems probable that the sixth 

 abdominal segment is distorted at the aj^ex. 



Xeoitamus fraternus Macquart. (Text-figs. 7 and 8.) 



Asihis fraternus, Macquart, Dipt. Exot., suppl. 1, 1846, p. 91; Walker, List Dipt. 



Brit. Mus., vii., suppl. 3, 18.55, p. 738; White, Proc. Rov Soc. Tas., 



1913, pp. 274 (in key) and 275. 

 Asiliis luctificiis, Walker, Ins. Saimd. Dipt., i., 1851, p. 144; Ricardo, Ann. Mag. 



Nat. Hist., (8), x-i., 1913, p. 447. 

 Neoitamus varius, Ricardo {nee Walker), Ann. Mag. Nat. Hist., (8), xi., 1913; 



p. 431 (part). 

 Neoitamus vulgatus, White, Proc. Roy. Soc. Tas., 1913 (1914), p. 276; 1916, p. 



177, text-fig. 28 (wing),; 1917, p. 93 (in key) . 

 Synonymy. The types of A. fraternus Macquart, A. luctificus Walker, and 

 N. vulgatus White are from Tasmania. Miss Ricardo placed A. fraternus, female 

 as a synonym of N. varius Walker, a New Zealand species, but this is probably 

 not correct. Miss Ricardo also suggests that A. luctificus Walker should be ex- 

 punged from the Hot of species as the type is lost, but the description conforms 

 well with this common Tasmauiau species. 



According to his key characters. White took his description of N. fraternus 

 JIacquart from Miss Rieardo's description of N. varius Walker, and he further 

 states that he did not meet with any species agreeing with Maeqnart's description. 

 It is possible, however, that White did not refer to Macquart's description, as 

 there is not a copy of Macquart's "Dipteres exotique" in Tasmania, and moreover, 

 if he had had access to this w^ork, he \vould not have overlooked so many species 

 of Diptera described from Tasmania. 



