BY ARTHUFw WHITE, 245 



1^ about equal to it in length. Thorax grey, almost bare, 

 but with two notopleural and one postalar bristles on 

 each side; scutellum. with two long, black, upright, ter- 

 minal bristles. Abdomen shining black, bare. Legs en- 

 tirely yellow, without any sign of darkening ; posterior 

 femora with a few small black apical bristles; anterior 

 tibiae with one, middle tibiae with about two, and pos- 

 terior tibiae with several, long black bristles; tarsi apically 

 darkened. Wings with the costa not bristly; discal cell 

 with two issuing veinlets ; anal cross-vein distinct, but. 

 anal vein faint; halteres pale yellow. 



Female resembles the male very closely, but the abdo- 

 men is produced into a long, narrcw ovipositor. 



This species seems to be fairly common. The male I 

 have taken on wattle blossom, the females frequenting 

 low vegetation and on a window. M]c dates range from 

 September 22 to November 1. 



Leptopeza sef,raticosta, Sp. nov. 



Thorax grey; abdomen shining black; legs yellow, with 

 the femora darkened above ; posterior femora, with num- 

 erous long bristles ; costa of wings bristly ; anal cross-vein 

 indistinct. 



Length. Male, 2.75 mm. 



Hab. Man gal ore. 



Male. Proboscis extending slightly beyond the oral 

 aperture ; palpi very short, whitish. Antennae a little, 

 longer than the head, the first and second joints very 

 short, the third about three times as long as the first 

 two together, a little expanded at the base, and taper- 

 ing gradually to the apex, and terminated by a sligntly 

 shorter arista. Thorax grey, with one humeral, two noto- 

 pleural, one supraalar, and two postalar bristles on each 

 side ; scutellum with black marginal bristles. Abdomen 

 shining black, bare, genitalia very large. Legs yellow, 

 the femora darkened above, all joints more or less bristlv ; 

 posterior femora with numerous long, black bristles; an- 

 t^^rior tibiae with about two, middle and j^osterior tibice 

 vv'ith numerous, long black bristles. Wings hyaline, with 

 the costa bristly; discal cell with two issuing veinlets; 

 both the anal cross-vein and ^nal vein very faint. 



This species is remarkable for the fact that it occurs 

 during the winter; it frequents low vegetation in the bush 

 during the first half of July, and though probably not 

 uncommon is apt to be overlooked. 



