94 REVISION OF THE STRATIOMYIDiE OF AUSTRALIA, 



Odontomyia carinifacies Macq. 



Abdomen black, Avith three pairs of small, yellow, separated 

 side-spots; antennae with a long, thin style: face, in female, 

 black, with a narrow, fulvous margin. (The male appears to be 

 unknown). Length, <^, 8 mm. 



Hab. — Victoria and Tasmania. 



This species seems to be generally scarce. 



Odontomyia lateremaculata Macq. 



Abdomen black, with three pairs of green or yellow side-spots, 

 the first and second pairs large, and usually confluent; antennae 

 with a short, blunt style; face, in male, black, in female fulvous. 

 Length, (J, 12 mm.; ^, 9 mm. 



Hab. — Victoria and Tasmania. 



This species is more often met with than 0. carinifacies, but 

 can hardly be described as common. 



Siibfamily SARGIN^. 



In this subfamily, four, posterior veins are present, the fourth 

 being separated from the discal cell, and arising from the second, 

 basal cell, as in the Stratiomyince. It is distinguished from the 

 Stratiomyince by the long, thread-like, antennal arista. 



Only two genera are, at present, known to occur in Australia; 

 one of these, Sargus, a genus of almost world-wide distribution, 

 is now recorded for the first time from the Australian region. 



Table of the Australian Genera of Sarghuv. 



1. Sen tellum without spines; bright, metallic species Sargus Fabr. 



2. Scutellum with spines; black species Acanthasargus White. 



1 5. S A r G u s Fabr. 



{Ghrysonolus Lw.; Chrysochrvma Willist.; Chrysonotomyia 

 Hunter; Geosargus Bezzi.) 



Antennae with a long arista, eyes bare, separated in both 

 sexes; scutellum without spines; abdomen long and slender; 

 wings large, fourth, posterior vein distinctly separated from the 

 discal cell, and arising from the second, basal cell; colouring of 

 thorax and abdomen metallic. 



