206 THE CANADIAN ENTOMOLOGIST. 



8. Petiole elongate, linear ; mandibles obliquely truncate ; clypeus wider 



than long Elimus, Saussure. 



(Type E. australis, Sauss.) 



Petiole elongate, but not linear, either clavate or subclavate, narrowed 



towards base ; second cubital cell angulate above. ..Labus, Saussure. 



(Type L. Humbertianus, Sauss.) 



9. Clypeus transverse ovate, much wider than long, the anterior margin 



medially bidentate Stroudia, Gribodo. 



(Type S. armata, Gribodo.) 



Subfamily III.— Raphiglossinae. 



In this subfamily the middle tibiae have two apical spurs as in the two 

 previously-defined subfamilies, but from these it is at once separated by 

 the venation of the front wings, the second and the third cubital cells each 

 receiving a recurrent nervure. In the other subfamilies the second cubital 

 cell receives both recurrent nervures. 



Table of Genera. 



1. Mandibles short, 4-dentate ; labial palpi 3-jointed, the joints 



long 2. 



Mandibles long, somewhat pointed and not distinctly dentate ; labial 

 palpi 4-jointed 3. 



2. Abdomen subsessile, the first segment not long; labium not especially 



long ; maxillary palpi 6-jointed Stenoglossa, Saussure. 



(Type Raphiglossa odyneroides, Saussure.) 

 Abdomen petiolate, the first segment long ; labium very long ; 



maxillary palpi 5-jointed Raphiglossa, Saunders. 



(Type R. eumenoides, Saund.) 



3. Abdomen petiolate ; labium short ; maxillary palpi 6-jointed, the 



joints short Gayelia, Spinola. 



(Type G. eumenoides, Spinola.) 



Subfamily IV. — Eumeninae. 



To this subfamily belong all Eumenids having the middle tibiae with 

 a single apical spur. The second cubital cell receives both recurrent 

 nervures. 



It is the largest and most extensive group in the family, and many 

 genera and species are known. 



I have divided it into three minor groups or tribes, which may be 

 recognized by the characters employed in the following table : 



