LIST OK RAPERS. 



Banks, Nathan. 



New North American Neuropteroid Insects . . .21 



COCKERELL, T. D. A. 



New and Little-known Bees . . . . .144 



The Bees of the genus Halictus found in New Mexico . 163 



Davis, G. C. 



A Review of the Ichneumonid Subfamily Tryphonin?e . 193 

 6>, Descriptions of new species of Trigonalidpe, Stephanidte 



and Ichneumonidse ....... 349 



Dyar, Harrison G. 



A Generic Revision of the Ptilodontid^e and jNIelalophidse. 1 



<L^ Hayward, Roland. 



On the Species of Bemhid'ium of America North of 

 Mexico ......... 32 



Lewis, H. W. 



Vespinse of the United States and Canada . . . 169 



