80 NEW AUSTRALIAN ASILID.E, 



posterior femora with short, black, spine-like bristles be^ 

 low, and a few longer oiies at sides ; all tibiae with bristles, 

 which are coloured similarly to the parts on which they 

 occur — reddish-yellow, on the reddish-yellow portions, and 

 black on the black apical portions ; tarsi with black 

 bristles. Wings with the characteristic venation of the 

 genus ; all posterior cells open, but the fo^urth consider- 

 ably constricted on the wing margin ; secoond posterior 

 cell, though wide open, is narrower on. the wing margin 

 than above, where it bulges into the third posterior cell ; 

 the wings are yellow, with the foremargin bright yellow ; 

 halteres light yellow. 



This species bears a close resemblance to *S'. elnngatus, 

 but may be distinguished by the reddish-yellow instead of 

 black tibial bristles, by the bright yellow instead of hya- 

 line or brownish wings, by the light yellow instead of 

 brown halteres, and by the smaller size. 



Several specimens of this species have been kindly 

 sent me by Dr. Ferguson, from New South Wales, where 

 it appears to be not uncommon. 



Subfamily Laphrinse. 

 Therutria, Loew. 



This genus is characterised b}^ a curved spine on apex 

 of the anterior tibife, face with a prominent tubercle, cov- 

 ered with a large bushy moustache, and wings with the 

 fourth jDosterior cell open, or occasionally bluntly closed 

 on the actual wing margin, and never closed above the 

 margin, and connected thereto by a small veinlet, as in all 

 the Australian species of Laphrio. Three species have so 

 far been described ; a fourth is now added. 



TnERUTRIA PULCHRIPES, Sp. nov. 



Moustache black and white ( $) or white ( 9 ) j 

 thorax and abdomen black, the latter with yellow side- 

 spots ; femora with basal two-thirds yellow, apical tnird 

 black; tibiae similarly coloured to the femora; wings 

 brownish, the fourtli posterior cell either narrowly open or 

 just cloised on the wing-margin. 



Length. Male and female, 15 mm. 



Hah. New South Wales (Leura), and Victoria. 



Male. Face and front black ; moustache bushy, com- 

 posed of intermixed black and white hairs; beard white. 

 Antennae black, the first and second joints of equal length, 

 bearing black hairs, the third about one and a half times 

 as long as the first two together. Thorax black, with 



