644 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



Key to Species. 



1. Blackish-brown, with a conspicuous yellow margin to first 



dorsal abdominal segment annularis 



Colored otherwise 2 



2. Abdomen with many yellow bands or with yellow spots. . variatus 

 Abdomen not so; more uniformly brown pallipes 



P. annularis Linnaeus. Howard, Insect Book, PL v, 

 Fig. 12. 



Length 18 mm. 



Belongs more to the southern United States, and is therefore 

 not apt to be found outside of the Carolinian Zone in Connecticut. 



P. variatus Cresson. 

 Length 18 mm. 



May be found throughout the State. (New Haven, 12 Sep- 

 tember, 1904 (B. H. W.). 



P. pallipes LePeletier. P. metricus Say. Common Wasp. 

 PI. viii, Fig. 8 (adult) ; PI. ii, Fig. 2 (nest). 



Common throughout the State. New Haven (E. J. S. M., B. 

 H. W., W. E. B.) ; Branford (H. W. W.) ; New Canaan (W. E. 

 B.) ; Mount Carmel E. J. S. M.). 



