RAYMOND AND BARTON: AMERICAN SPECIES OF CERAURUS. 543 



Cheirurus icarus Billings, Ch. polydorus Billings, and Ch. pompilius 

 Billings, form a group to which the junior author of this paper is giving 

 a new name. 



The European genera Eccoptochile, Aetinopeltis, Areia, Youngia, 

 Cyrtometopus, and Crotalocephalus do not appear to have been 

 recognized as yet on the North American continent. 



