BY ARTHUR WHITE. 151 



Male. Xo specimen of the male is at present known 

 from Tasmania, so I take the following particulars from 

 a New South Wales specimen, kindly sent m© by Dr. 

 Ferguson. It differs from the female in its smaller size- 

 and darker hind femora, the brown band occupying al- 

 most the whole surface, leaving merely a fawn-coloured 

 ring towards the apex; the thorax is duller and darker, 

 the abdomen grey instead of brown, and the wings com- 

 pletely hyaline ; genitalia large, with thin white apical 

 hairs, and longer black hairs on either side. 



This species may be recognised without much difficulty 

 by the banded posterior femora, and by the second sul>- 

 iiiarginal cell being slightly contracted towards the wing 

 margin, instead of being absolutely wide open, without 

 the slightest sign of any contraction, as in the other 

 species. 



Of this species I took a single example in the hills at 

 South Bridgewater on January 19, 1912. It seems to 

 occur much more commonly in Victoria and New South 

 Wales. 



Leptog ASTER j.STiVA, White. 



Thorax and abdomen olive, the former indistinctly 

 striped, all femora bright orange with black knees. 



Length. Male, 10.5 mm. ; female, 13.5 mm. 



Length of wing. Male, 6 mm. 



Hab. Bagdad Valley. 



Male. , Face white, moustache white, scanty. Antennc& 

 black. Front pale yellowish. Thorax olive, faintly stiiped, 

 the sides pale grey. Abdomen olive ; first segment with 

 a. few white bristles on each side. Legs with all femora 

 orange, the posterior pair whitish at the base; knees 

 black ; anterior and middle tibiae orange, posterior 

 tibiae brown, pale at base, and becoming gradually darker 

 towards the apex, and bearing a few white bristles; tarsi 

 black, the first joint with basal three-fourths white. Wings 

 very short, clear, with black veins. 



Female resembles the male, but is larger; the abdo- 

 men has sides and segmentations grey, the grey colour 

 encroaching on the second and third segments, in which 

 the olive colour is reduced to a dorsal stripe, narrow 

 above and broader below. 



L. cestiva is distinguished from all the other Tasmanian 

 species by its bright orange instead of fawn-coloured 

 femora, also from all the species excBpt L. vernalk by its 

 very small, short wings. 



