THE CANADIAN ENTOMOLOGIST. 315 



Scutellum normal or only slightly elevated ; transverse 

 median nervure straight perpendicular and placed 

 before the middle of the anal cell. 



Head small, much narrower than the thorax ; 

 clypeus at apex truncate or rounded ; antenna; 

 much shorter than the abdomen, incrassated 



towards apex Colochelyna, Konow. 



Scutellum conically elevated ; transverse median 

 nervure oblique and placed beyond the middle of 

 the anal cell ; clypeus deeply emar- 

 ginated Conaspidia, Konow, 



14. Hind wings without a surrounding nervure at apex. 



Lanceolate cell with an oblique cross-nervure ; third joint of 



antennae longer than joints 4-5 united. . Aglaostigma, Kirby. 



Lanceolate cell with a straight cross-nervure ; anal cell in hind 



wings fully as long or a little longer than the submedian ; 



clypeus truncate. $ Homaoneura, Ashm. 



(Type P. delta, Prov.) 



Hind wings with a surrounding nervure at apex ; lanceolate cell with 



a straight cross-nervure ; anal cell in hind wings a little shorter 



than the submedian. (J Tenthredopsis, Costa. 



15. Hind tarsi not longer than their tibiae ; hind wings with a surrounding 



nervure at apex ; anal cell as long as the submedian ; clypeus 

 truncate. (^ Homoeoneura, Ashm. 



Family XV. — CiMBiciDiE. 



The 5- to 8-jointed, clavate antennce, in both sexes, and the acutely 

 margined abdomen readily distinguish this family from all the other 

 families of sawflies. It may be separated into two subfamilies as follows : 



Table of Subfamilies. 



Lanceolate cell with a transverse nervure Subfamily L, Cimbicinae. 



Lanceolate cell contracted at the middle Subfamily H., Abiina?. 



Subfamily L — Cimbicid.'e. 



This subfamily contains rather large, robust sawflies, with rather 

 stout or more or less swollen hind femora, which are often toothed 

 beneath, and always have the lanceolate cell in the front wings divided 

 into two parts by a transverse nervure. Their larvae are external feeders 

 and are scarcely distinguishable from the Tenthredinidx. 



