i:v <:. 11. ii.\ui>Y. 



85 



6. Bright reci-haired species. 



rutilus, Wiilk.= ?albicinctus, Alacq. 

 Fulvous haired species. albivitta, Macq. 



(Position doubtful, but probably belongs here). 



7. Yellow hailed species. 



breinroHtri!^, ^lacq. = CHlahiaius, Bigot. 

 Type denuded, a small species from Swan River, re- 

 sembling brrrirostris, but costa more broacHy 

 brown, though not extending to the tip. 



pvimogenitufi. Walker." 

 ()l>srirat'iniiK. — Four species, jjiiif/uis, alias, u)iteccdens, 

 and inintnfafns, Walker, which were placed in my catalogue 

 under this genus, are now referred to DischiNtiift. White 

 queried B. cdbicinctas, Macquart, to be the same as D. aura- 

 tits. Walker, but Macquai't states "abdomine albo fascialio . . . 

 "quatrieme segment de ce dernier a longs polls blancs au bord 

 "anterieur . . . premiere cellule posterieur fermee . . . ," 

 all of which does not agree with White's suggestion. 



Sisyromifia auratus. Walker. 



Bombt/Uiis nin-atiis. Walker, List Dipt. B.M., ii., 1849, p. 289. 

 Sis!in))iiiii(i (iiDatus, Hardy, Proc. Roy. Soc. Tasm., 1921,. 

 p. 71, which see for further references and synonymy. 

 BovibijUns nitilus. Walker, ibidem, p. 289. 

 Sisijyoimjia rutilus. Hardy, ibidem, p. 72. 



Sifiioii 1/1)11). — It seems evident from White's description 

 that B. rntilits. Walker, is one of the forms placed by me 

 under the name Sisyromyia auratus, Walker. Possibly fur- 

 ther study will result in the separation of this series into 

 more than one species, but tbere are no described characters 

 that will enable this to be done at the present time. I have 

 recently detected some differences in the palpi that possibly 

 may he of s|)ecific value, but the material available for study 

 is neither sufficient in numbers nor good enough in condition 

 to verify the points. 



Genus BoMBYUUS, Linnajus. 



White's niauiiscriiH. — "First posterior cell closed; first 

 basal cell longer than the second. 



Key to the Species of the (units Boiubi/lius. 



1. Abdomen fringed posteriorly with white; wings with 

 costa! half brown, remainder hyaline. 



Ii ilaris, Waikt r. 

 .\l)domen not fringed with white. 2. 



