THE CANADIAN ENTOMOLOGIST. 



355 



var. canadensis, Smith, 

 var. architectus, Lepel. 

 var. lucse, Sauss. 

 var. flavipes, Fabr. 

 var. flavipunctum, Chrisb. 



(2) C. coeruleum, Linne. 



(3) C. texaninn, Cr. 



(4) C. Zimmermanni, Dahlb. 



(5) C. aztecum, Sauss. 

 Subfamily IV — Podiince. 



var. flavimaculatum, DeGeer.(i7) Podium, Fabr. 



var. jamaicensis, Fabr. 



(2) S. Servillei, Lepel. 



(3) S. fasciatum, Lep. 



= argentifrons, Cr. 



(4) S. annulatum, Cr. 



(5) S. assimile, Dahlb. 



(6) S. argentispilus, Prov. 



(7) S. tau, D. T. 



(8) S. nigriventris, Costa. 

 (16) Chalybion, Latreille. 



(i) C. californicum, Sauss. 



(i) P. luctuosum, Smith. 



(2) P. rufipes, Fabr. 



(3) P. bellum, Cam. 



(4) P. bugalense, Cam. 



(5) P. fulvipes, Cr. 



(6) P. opalinum. Smith. 



(7) P. petiolatum, Drury. 



(18) Stethrorectus, Smith. 



(19) Trigonopsis, Perty. 

 ([) T. violaceus, D. T. 



Family XXVI. — Anipulicidas. 



This family, in general appearance and in having a petiolate abdo- 

 men, is allied to the SphegidcB, but is readily separated by the mesosternum 

 being produced into a forked process posteriorly, by the mesonotum 

 having distinct parapsidal furrows, by the clypeus being produced posteri- 

 orly between the insertion of the antennae, often rostrate or carinate, and 

 by its metathoracic characters. 



The species, so far as we know, prey upon cockroaches, and thus 

 differ in their habits from the Sphegidce. 



The family may be divided into two natural groups, which I have 

 designated as subfamilies, and which may be distinguished by the use of 

 the following table : 



Table of Subfamilies. 



Marginal cell at apex acute, without an appendage ; metathorax posteriorly 



truncate or rounded, unarmed ; clypeus not 



carinate Subfamily I., Dolichurinae. 



Marginal cell at apex rounded, witJi an appendage ; metathorax posteriorly 



squarely truncate, the upper angles most frequently acute or toothed ; 



clypeus carinate Subfamily II., Anipulicinae. 



