NATURAL HISTOKY, TORONTO REGION" 



Pemphredonidae (Pemphredonids). 

 Psen niger, Pack. 

 Passalaecus mandibularis, Cress. 

 Sphecidae (Thread-waisted Wasps, Mud-daubers, etc.). 

 Sceliphron cementarium, Dm. 

 Chalybion coeruleum, Linn. 

 Sphex communis, Cress. 

 " conditor, Smith. 

 " luctuosa, Smith. 

 " procera, Dahlb. 

 Ammobia ichneumonea, L. 

 Isodontia philadelphica, Lep. 

 Philanthidae (Philanthids). 



Cerceris clypeata, Dahlb. 



" nigrescens, Smith. 

 Eucerceris zonatus, Say. 

 Philanthus bilunatus, Cress. 



solivagus, Say. 

 Bembecidae (Bembecids). 



Stictica ventralis, Fab. 

 Bembex fasciata, Fab. 

 Microbembex monodonta, Say. 

 Gorytidae (Gorytids). 



Gorytes epphippiatus, Pack. 

 Crabronidae (Crabronids). 



Crabro pegasus, Pack. 



" aciculatus, Prov. 

 Solenius singularis, Smith. 

 " interruptus, St. Farg. 

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