HY ROWLAND E. TURNER. '213 



The colour of the legs in the males is veiy variable; the varia- 

 tions in this respect may prove to be local, but as I can detect 

 no differences in females from different localities, I prefer to sink 

 all into one species, I cannot agree with Saussure's remarks on 

 the differences of shape in the thorax and abdomen of the males. 

 I follow other authors in putting the sexes together, having had 

 no personal acquaintance with the species. The large size and 

 brilliant blue colour of the female cause it to be well known to 

 all collectors. 



Hah. — ISydne}^, N. 8.W.; Melbourne, Vic; Adelaide, S.A.; 

 Tasmania 



This is the only species of the subfamily in Australia, but one 

 or two males have been described from Argentina which will 

 probably prove to belong to it. 



Subfamily THYNNINJE. 



Genus Oncorhinus Shuckard. 



O'ficorhimts Shuckard, in Grey's Journ. of two Expeditions to 

 N.W. and W. Australia, ii. p.471, 1S41. 



,^. Glypeus very large, tumid, broadly emarginate at the apex. 

 Labrum much narrowed posteriorly, rounded at the apex. 

 Mandibles bidentale. Maxillary palpi six-, labial four-jointed. 

 Bead broader than prothorax; antennae long, about equal in 

 length to the abdomen, stout and of about even thickness through- 

 out. Prothorax rather short, median segment vety short and 

 obliquely truncate from the base. Abdomen of moderate length, 

 a little broader at the third and fourth segments than elsewhere, 

 first segment narrowed to the base. P]pipygium broadly truncate 

 at the apex, with a triangular, longitudinally striated prominence 

 at the base. Hypopy^ium widely and de^eply emarginnte at the 

 apex, leaving a spine on each side, but without a central apical 

 spine. The second recurrent nervure is interstitial with the 

 second transverse cubital nervure. 



Saussure, with doubt, followed by Ashmead, gives, the man- 

 dibles as tridentate. This is incorrect. I am very doubtful as 



