• BV ARTHUR WHITE. 71 



anteriorly widely, and posteriorly narrowly, black, remainder 

 of segment brownish yellow; third segment yellow, A/ith 

 anterior third centrally black; fourth segment dark brownish 

 yellow, with obscure blackish markings diverging from the 

 centre of the anterior margin ; fifth segment black ; the first 

 to the fourth segments have narrow whitish hind margins. 

 Legs with femora jellow brown, knees black; tibiae black, 

 becoming yellowish towards the tarsi ; tarsi black. Wings 

 hyaline, costa yellowish ; veins yellow brown, faintly marked. 

 Squamae with blackish margins. 



This species seems subject to great vaiiation, both as 

 regards size and cDlouration. The specimen from Maugalore, 

 from which the above description is tak^n, measures 8 mm., 

 but two specimens sent me by Mr. F. M. Littler, which 

 apparently belong to the same species, measure only .5. -5 and 

 6 mm. respectively. The former of these, which was taken 

 at Launcestou, has the legs entirely yellow, and the yellow 

 markings of the abdomen less extensive than in the sptcimeii 

 described. The other specimen, which is from Bridport, and 

 which may possibly represent a distinct species, has the 

 abdomen entirely brownish blacjc, with pale hind margins; 

 legs yellow with the knees black. 



0. flavescens may be dihtinguished from the other Tas- 

 mauian species of Oncodes by its extensive yellow colouring. 

 An allied, possibly identical species occurs iu Victoria. 0. 

 doddi Wandolleck from Queensland, which is somewhat 

 similarly coloured, is a much smaller species witli brown 

 thorax and brownish wings. 



The only specimen of this species that I have ])ersonally 

 met with occurred at Mangalore ou January 6, 1912; it was 

 flying rapidly to and fro over the surface of a road. 



Oncodes nigrinervis, Sp. nov. 



Thorax black; abdomen black with hind margins of seg- 

 ments white; femora and tibiae black; wings brown with the 

 veins strongly marked. 



Len.oth. Male. 6.5 mm. 



Hak Hobart.' 



Male. Head consisting chiefly of the eyes. Face white. 

 Antennae black, very small. Thorax and scutellum black, 

 covered with brownish pubescence. Abdomen bla.ck, the 

 hind margins of all segments, except the first, narrowly 

 white. Legs with the femora, tibiae, and tarsi black, the 

 knees white; all covered with very short white pubescence. 

 Wings light brown with the costal margin dark brown, veins 

 dark brown, strongly marked and prominent. 



This species is easily distinguished by the black legs and 



