286 Mr. R. E. Turner on Fossorial Hymenoptera. 
nervure, second received close to the middle of the second 
cubital cell. 
Hab. Bundaberg, Q. (Perkins). 
This is near formosa, Sm., an Indo-Malayan species, but 
differs in the colour of the legs and scape. It differs widely 
from the other Australian species LZ. michaelsent, Schulz, 
both in colour and the sculpture of the median segment, also 
in the position of the recurrent nervures and the shape of the 
third cubital cell. 
Subfamily Nrrerivz. 
Key to the Australian Genera. 
1. Radial cell appendiculate; first transverse 
cubital nervure oblique, almost interstitial 
with the recurrent nervure; pronotum 
short, the dorsal surface transverse ...... Nitela, Latr. 
Radial cell without an appendix; first trans- 
verse cubital nervure joining the radius at 
right angles, the recurrent nervure re- 
ceived far before the end of the cubital 
cell; pronotum long, produced and nar- 
rowed ‘anteriorly 9 .).) visemes eis er .+.. <Auchenophorus, Turn. 
Key to the Australian Species of Nitela. 
1, Legs entirely ferruginous..............0 2. 
Legs almost entirely black .............. NY, australiensis, Schulz, 
2. Mesonotum coarsely transversely striate- 
TRIHOUIENS) yaoogadoonddGonbgo00DDOL NV. reticulata, Turn, 
Mesonotum opaque, the sculpture indistinct 
ENGIN icec meee Heke Hear Seat NV. kurande, Turn. 
1. Nitela australiensis, Schulz. 
Nitela australiensis, Schulz, Fauna Stidwest Australiens, i. xiil. p. 483 
(1908). 
Mitela nigricans, Turn. Trans. Ent. Soc. London, p. 428 (1910). 
I do not think, after an examination of specimens from 
different localities, that these can be separated. ‘Lhe species 
has a very wide range in Australia, and may be found on 
dead LHucalyptus trees which have been attacked by small 
beetles, in the holes of which the Nitela probably forms its 
nest. ‘Tasmanian specimens differ slightly, having the poste- 
rior ocelli further from the eyes than in the typical form, but 
they are not typical nigricans. 
