254 IHE DIPTERA-BKACHYCEEA OF TASMANIA, 



bristles; hypopygium small, and almost concealed beneath 

 the apex. Legs of medium length, usually with only a 

 few small bristles, but sometimes distinctly bristly ; anterior 

 tarsi in the male with the pulvilli enlarged. Wings rather 

 broad, the cubital and cliscal veins almost parallel, though 

 both may be gently curved down towards the margin. 



The species belonging to this genus are small, dull 

 metallic flies, which may often be seen resting on tree- 

 trunks. They can be recognised without difiiculty by the 

 eyes of the male being joined above the antennae. In Tas- 

 m.ania twO' species are known to occur. 



Table of the Taamanian Species of Diapliorus. 



1. Abdomen with the second segment whitish, re- 



mainder dark brown ; legs in male very bristly, 

 the bristles on inner side of posterior tibiae ex- 

 tremely long. Setosus, Sp. nov.. 



2. Abdomen entirely dark brown ; legs with only a 



few short scattered bristles. Communis, Sp. nov, 



DiAPHORUS SETOSUS, Sp. UOV. 



Thorax dull metallic green ; abdomen dark brown, with 

 the second segment whitish ; femora, black ; tibiae light 

 brown ; legs in the male very bristly ; the bristles on the 

 inner side of the posterior tibiae extremely long. 



Length. Male, 4 - 4.5 mm. 



Hab. Hobart. 



Male. Eyes red, large, joined on the front, and only 

 slightly separated on the face, which is consequently very 

 narrow. Antennae black. Thorax dull metallic bluish- 

 green; thoracic bristles very long; scutellum similarly 

 coloured to the thorax, with t^^o very long and two short 

 marginal bris.tles. Abdomen dark brown, with the second 

 segment whitish, the whole shining, but not metallic, and 

 bearing black, lateral, hindmarginal bristles and shortei' 

 black hairs ; apex with four black bristles. Legs with 

 femora black ; tibiae and first joint of tarsi light brown, re- 

 maining tarsal joints black ; all femora with numerous 

 black bristles, which are longest on the posterior pair; 

 anterior and middle tibiae wich a few black bristles, the 

 middle tibiae with long spurs ; posterior tibiae with long, 

 stiff, black bristles outwardly, and very long, thin bristles 

 inwardly; first joint of posterior tarsi with short bristles; 

 all joints, in addition to the bristles mentioned, bear a tme 

 black ciliation. Wings hyaline, the cubital and discal 

 veins almost equidistant throughout, and curved down 



