MEMOIRS OF THE QUEENSLAND MUSEUM, Vol. X, Past V. 
NEW AUSTRALIAN SAWFLIES ( Hymenoptera , 
Symphyta). 
By Robert B. Benson, M.A., Department of Entomology, British Museum, London.. 
I have lately had the opportunity of studying a most interesting collection 
of sawflies from the Queensland Museum. The collection, of approximately 150 
specimens, contained representatives of at least 15 new species ; 13 of these are 
described in the present paper, while the descriptions of two others will appear 
later elsewhere. 
One new genus is describsd Styracotechys, and for this Styracotechyince 
a new subfamily of the Pergidce, had to be erected. Keys to a new classification 
of the Pergidce are included so as to show the position of this new subfamily 
in relation to the other subfamilies, and in the keys a new subfamily 
Paralypiince is also instituted for the South American Paralypia and allied 
genera. Mention should also be made here to one further addition to the 
Australian fauna in Senoclidea ? furvus Konow from Port Darwin. This species 
was previously known only from New Guinea. 
The richness of this material, which was collected in the field mostly by 
Mr. H. Hacker, Entomologist of the Queensland Museum, suggests that there 
are still many more new species of sawflies yet to be found in Australia. 
AKGID,E. 
ANTARGIDIUM Morice. 
I lately redefined this genus, Benson 1934 (1), and described two new 
species ; in the present collection there are two more new r ones, both having 
in the hind wing the recurrent vein nearer to the base of the wing than the 
cubital, so that the discoidal cell is smaller and shorter than the cubital as it 
is in Antargidium allucente Benson, fig. 1 of that paper, though the exact 
position of the recurrent vein is different in three specimens of one of the 
species. It now appears that the exact position of these veins differs in 
individuals of the same species, and probably, if long series could be examined, 
would be found to be of no significance in separating the species. A comparison 
of the saws of the new species with the three already described shows that the 
saw figured for A. allucente Benson, fig. 7 in my previous paper, is in some 
respects not typical for the genus ; in all four other species the hair bands 
are eplaced by a row of short broad-based spine (see figs. 1 and 2), and the 
denticulations are of the pattern illustrated in fig. 9 of that paper, although 
differing in detail. Furthermore the saw of A. allucente Benson was not figured 
B 
