OF WASHINGTON, VOLUME XIII, 1911. 219 



FAMILY CIMBECID^. 



The genera Praia Andre, Plagiocera Klug, and Pachylostictia Klug 

 are known only from literature and cannot be placed. 



TABLE TO THE SUBFAMILIES. 



Sternauli represented externally by a carina but not present in- 



ternally; posterior coxae well separated ............ Cimbecinse 



Sternauli entirely wanting; posterior coxae contiguous or nearly 



so ....................................................................... Zarseinse 



SUBFAMILY CIMBECIN^. 



The placing of the fossil group here is done mostly by deduction, 

 but the general form of the fossil insects is that of Cimbecini and 

 they no doubt belong here. 



TABLE TO THE TRIBES. 



Radial cross-vein present; modern insects .......................... Cimbecini 



Radial cross-vein wanting; fossil insects .................... Phenacopergini 



Tribe CIMBECINI 

 Contains Cimbex Olivier and Trichiosoma Leach. 



Tribe PHENACOPERGINI. 



Includes Phenacoperga Cockerell and Pseudocimbex Rohwer. 



SUBFAMILY 



Anal cell of the fore wings with a straight cross-vein. 



Pseudoclavellariini 

 Anal cell of the fore wings broadly contracted in the middle. 



Zarxini 



Tribe PSEUDOCLAVELLARIINI, 



Includes Pseudoclavellaria Schulz, Agenocimbex Rohwer, and, prob- 

 ably, Euclavellaria Enslin. 



Tribe ZARJEINI. 



Includes Zarsea Leach, Abia Leach, Parabia Semenow, Amisn 

 Leach, and Trichiosomites Brues. 



FAMILY PERREYIID^. 



If Decameria dates from Lepeletier, and belongs here, the name of 

 the family should be Decameriidae. 



Syzygonia Klug, and allies, are known only from descriptions and 

 figures. They may belong here and may form a group in Philomasti- 

 ginse. 



