222 
MEMOIRS OF THE QUEENSLAND MUSEUM. 
This species would run to N. caudata Morice (Tasmania) in my previous 
key and superficially is rather like that species. N. caudata Morice is, however, 
much larger, has black mandibles, labrum and antennae, has a malar space 
decidedly longer than the pedicel, has a sawsheath in normal position (not 
erect) (cf. figs. 7a and 8), curved hairs on the side of the sawsheath when 
viewed from above, and different saw (see figure in my previous paper). The 
saw r of N. aurora sp. nov. is unlike any other previously met with in the 
genus and is more like that of a typical Diphamorphos sp., and, from its strong 
build and arrangement of spiny projections, suggests that the species oviposits 
in some coarse plant tissue. 
Both N. aurora sp. nov. and N. brevivalvis sp. nov. differ from all 
previously described. Neoeurys in the peculiar erect position of the sawsheath 
and the slightly shorter malar space. 
PERGID^E. 
For one of the most interesting specimens in the collection it was found 
necessary to erect a new genus and subfamily. In order to place the new 
subfamily, the following system of classification is put forward provisionally. 
The system is convenient at present, but, no doubt, when more genera are 
discovered, it will prove to be inadequate. 
1. Radial cell in hind wing open at apex ; cubitus and cubital veins forming 
the apex of the subcostal cell in hindwing are in one straight line and 
transverse. 
[Eyes converge in front leaving a linear malar space ; propodeum is 
deeply emarginate behind, leaving exposed a large poorly chitinized 
area ; antennae very short, of not more than 6 segments in all, and 
threadlike. 1st transverse cubital vein missing.] 
Genera : Acordulecera Say, Ceratoperia Enderlein and Thulea Say (South 
American region), Acordulecerin^e. 
-. Radial cell in hind wing closed at apex ; cubitus and cubital veins 
forming apex of the subcostal vein in hindwing are not in one 
straight line, the cubitus being longitudinal 2 
2. Abdomen long and tapering posteriorly ; in $ tergum 9 elongate. Head 
twice as broad as high when viewed from in front ; $ antenna with apical 
dorsal projections to segments. Eyes almost round when viewed from side 
and set far away from mandibles leaving a malar space about as long as 
half the diameter of an eye ! Antennae set behind the clypeus at a distance 
of about the length of the malar space. Fore wing with 1st recurrent vein 
