208 THE CANADIAN ENTOMOLOGIST. 



cubital cell quadrate or nearly ; front angles of pronotum acute. 



(Liberia, Africa) Micreumenes, Ashmead, g. nov. 



(Type M. Curriei, Ashm. MS.) 

 6. Petiole of abdomen rather short ; wings very 



large Pachymenes, Saussure- 



(Type P. sericea, Sauss.) 



Tribe II. — Odynerini. 



Into this tribe fall the vast majority of the known genera and species 

 belonging to the subfamily Eumenince. They are easily recognized by the 

 sessile, or, at most, subsessile abdomen, and by their shorter, stouter, 

 more robust form. 



Table of Genera, 

 i. Abdomen with the first segment quite differently formed, neither 

 distinctly funnel-shaped nor subcampanulate, often truncate at 

 base 2 . 



Abdomen with the first segment funnel shaped or subcampanulate> 

 subbidentate medially ; maxillary palpi 6-, labial palpi 4- 



jointed Nortonia, Saussure. 



(Type Odynerus intermedins, Sauss.) 



2. First abdominal segment above, near the base, without a transverse 



carina 3- 



First abdominal segment above, near the base, bounded by a transverse 

 carina 1 1 • 



3. Maxillary palpi 5-jointed or less 12- 



Maxillary palpi 6-jointed 4. 



4. Labial palpi 3-jointed 5- 



Labial palpi 4-jointed 7- 



5. Labial palpi neither very long nor plumose 6. 



Labial palpi very long, plumose ; mandibles distinctly 4- or 5- 



dentate Pterocheilus. Klug. 



(Type P. Pallasii, Klug.) 



6. First joint of maxillary palpi very large, much swollen, almost as long 



as the following joints united ; last joint of the labial palpi very 



small ; £ antennas simple Abisba, Mitchell. 



( = Monerebia, Sauss.) 

 (Type Vespa ephippium, Fabr.) 



