184 THE DIPTERA-BRACHYCERA OF TASMANIA, 



*2 Abdomen rounded or conical, usually with dense 

 furry pubescence ; proboscis long (except in 

 those species with a simple cubital vein) ; radial 

 vein never with a strong loop before its end. 



Bombylinse. 

 Abdomen flattened, bare, and usually parallel- 

 sided; radial vein with a strong loop before its 

 end Lomatinse. 



Subfamily Bombylinse. 



This subfamily is the largest and most typical of the 

 Bomhylidce. It contains the well-known "Bee-Flies,'' 

 which may often be seen hovering over flowers in the 

 spring and early summer. Typically the abdomen is very 

 broad, and covered with long furry pubescence, but in a 

 few genera it is narrow and conical, and almost bare; it 

 is, however, never flattened as in the LojnathicE and 

 Anflirarince. The cubital vein is normally forked, but 

 there is a peculiar group, which should perhaps form a 

 separate subfamily, in which the vein is unforked, the 

 head situated low down beneath a very gibbous thorax, as 

 ill the Cyrtidce,, and both body and legs are devoid of 

 pubescence. This curious group is represented in the Aus- 

 tralian region by a single Tasimanian genus, Cyrtomorijha, 

 now recorded for the first time. The correct position of 

 the new genus Marmasoma is also open to doubt, owing 

 to the scaly vestiture, and the long bristles of the body 

 and legs. If the subfamily Toraphorince is recognised, it 

 should be placed there, but until the Australian Boiuhylidce 

 are properly worked out, and the affinities of the different 

 genera ascertained, I have preferred to place it in the 

 Bomhylince 



liable of the T'asnianian Genera of Bomhylince. 



1. Discal cell wanting; cubital vein unforked, 



extremely humpbacked, small bare flies. 



Cyrtomorpha, Gen. nov. 

 Discal cell present ; cubital vein forked. 1^ 



2. Abdomen narrow, conical and not with dense 



furry pubescence. 3 



Abdomen broad, rounded, and bearing dense 

 furry pubescence. 4 



3. Wings with only three posterior cells. G e r o n, Meig. 



Wings with four posterior cells ; thorax and legs 

 bristly. Marmasoma, Gen. nov. 



