306 THE CANADIAN ENTOMOLOGIST. 



SO admirably described and figured by Barmeister, that I have no hesi- 

 tancy in considering it a distinct group near the DolermcR. 



The venation of the front wings is quite different from the other sub- 

 families, in lacking the third transverse cubital nervure and in the shape 

 of the mandibles. 



This group is evidently peculiar to the Oriental region, and we may 

 naturally expect the discovery of other genera in it when the sawflies of 

 that region are more extensively- collected, since at present our knowledge 

 of them is most meagre. 



The single genus known may be briefly characterized as follows : 

 Hind wings without a closed discal cell, the anal cell a little shorter than 

 the submedian ; right mandible simple, acute ; left mandible acute at 

 apex, but with an incision or tooth at the middle within ; claws 



cleft Athlophorus, Burmeister. 



Subfamily II. — Dolerin^. 



This subfamily was first separated as a tribe by S. C. Thomson, in 

 187 1, with one genus, Dolerus, Jurine, established in 1807. Pastor 

 Konow, however, in 1890, separated this genus into two distinct genera, 

 based upon the shape of the eyes and the length of the malar space. An 

 examination of a large series of species of Dolerus shows that these 

 characters are scarcely reliable or always to be depended upon for 

 separating the genera, the length of the malar space being variable in the 

 same species, while the shape of the eyes merges gradually from a short 

 oval to a long oval. I am, however, not yet prepared to reject the new 

 genus Loderus, Konow, and give below the characters made use of by 

 him for separating the two genera. 



Table of Genera. 



Three submarginal cells, the second long, receiving both recurrent 

 nervures. 



Eyes oval or rounded and strongly convex ; malar space as long or 



longer than the pedicel Dolerus, Jurine. 



Eyes long-oval, slightly emarginate within ; malar space very short, 

 linear, shorter than the pedicel Loderus, Konow. 



Subfamily III. — Strongvlogasterin/E. 



This group or subfamily has been heretofore confused with the 

 Selandriides, possibly on account of the similarity of neuration. To me, 

 however, the genera here brought together under the above subfamily 



