228 THE CANADIAN ENTOMOLOGIST. 



Claws cleft or bifid; abdomen with the third segment laterally rather 

 strongly sinuate, and appearing more or less distinctly angu- 



late • • (3) Hedychrum, Latreille. 



(Type Sphex nobilis, Scopoli.) 



Subfamily IV. — Elampinre. 



This group could only be confused with the Hedychrhue, the only 

 available character to separate it from that group, and probably not a 

 reliable character, being the apparent absence of discoidal cells in the 

 front wings. I have examined many specimens, and in nearly all I can 

 clearly detect these cells by hyaline veins, when examined through 

 a bright light. 



Table of Genera. 



Postscutellum seen from the side gibbous, convex, subconvex or 



obtusely produced, rarely subcorneal 2. 



Postscutellum seen from the side acuminately produced into a 

 depressed blade or ledge. 



Front femora towards base rectangularly dilated ; abdomen with 

 the third segment at apex medially most frequently strongly 

 narrowed, reflexed and truncate ; claws with 3-6 



teeth . . ( 1 ) Notozus, Forster. 



(Type Hedychrum spina, Lepel.) 



2. Posterior tibiae normal 3. 



Posterior tibia? in $ dilated, compressed. 



Abdomen with the third segment at apex undulate or rounded 

 centrally, almost entire, very slightly sinuate, scarcely incised ; 

 pronotum declivous before ; claws with 3 



teeth (2) Philoctetes, Abeille. 



(Type Elampus micans, King.) 



3. Abdomen with the third segment at apex medially not truncate, and, 



viewed laterally, not forming a snout-like projection 4. 



Abdomen with the third segment at apex medially truncate, and, as 

 viewed laterally, forming a snout-like projection that appears 

 truncate ; seen from behind, it is usually incised or emarginate 

 below. 



Surface of the third segment, just above the snout like projection, 

 produced into a cone-shaped piece forming the direct apex of 



