HV <;. P. him.. 



457 



Wings hyaline, veins and pterostigma pale yellowish; the pos- 

 terior veins, excepting the base of the first and fourth, very indis- 

 tinct, only a vestige of the third, the fourth issuing from the second 

 basal cell (generic character), none reaching the wing border. 

 ( Fig. ib.) 



Text-fig.46. 

 Odontomyia pallida, n.sp., male. 



Abdomen pale stramineous, anterior half of first segment dark 

 brown medially, this area becoming narrower and obscure pos- 

 teriori}', scarcely visible in the anterior border of the second 

 segment, but darker and wider posteriorly, widening and occupying 

 nearly the whole of the third and the entire fourth segments. 

 10$. Unknown. 



llab. — Northern Territory: Darwin, July, l!)18. Type unique. 



Odontomyia obscura, n.sp. (Figs.5a, 5/>). 



9. Total length, 12; wing, 'J. 



Head: eyes finely facetted throughout, widely separated, con- 

 verging from 2 mm. about the middle of the irons to 145 mm. at 

 the vertex. Vertex, ocellar plate, and upper part of frons black, 

 with a few short golden hairs; lower part of frons, the clypeus 

 and genae dark stramineous; proboscis black; frons with a deep 

 median suture extending from the ocellar plate to the insertion of 

 the antenna?; antennae arising slightly above the middle of the 

 head in profile, 1-5 in length, rusty red freckled with white, bare 

 excepting for a few short stout hairs at apex of second joint; first 

 and second joints equal in length (-20), third joint nearly five 

 times as long (-95), style short (Fig. 5a). 



Thorax black, clothed with short golden hairs, longer towards 



