LIST OF PAPERS 



BOWDITCH (F. C.) 



Notes on Some South American Halticidae . . 487 



(Issued October 16, 1915.) 



Fall (H. C.) 



A Revision of the North American Species of Pachy- 

 brachys ........ 291 



(Issued September 27, 1915.) 



Hebard (Morgan) 



See Rehn and Hebard. 



Merrill (J. H.) 



On Some Genera of the Pimpline Ichneumonidae . 109 



(Issued May 24, 1915.) 



Rehn (James A. G.) and Hebard (Morgan) 



Studies in American Tettigoniidae (Orthoptera). IV. 



A Synopsis of the Species of the Genus Orchelimum . 11 



(Issued April 12, 1915.) 



Studies in American Tettigoniidae (Orthoptera). V. 

 A Synopsis of the Species of the Genus Conocephalus 

 found in North America North of Mexico . . 155 



(Issued June 19, 1915.) 



Studies in American Tettigoniidae (Orthoptera). VI. 

 A Synopsis of the Species of the Genus Conocephahis 

 found in America South of the Southern Border of 

 the United States ...... 225 



(Issued July 14, 1915.) 

 SCHAUS (W.) 



New Species of Heterocera from Tropical America . 1 

 (Issued February 20, 1915.) 



Wilson (H. F.) 



Miscellaneous Aphid Notes Chiefly from Oregon . 85 



(Issued May 3, 1915.) 



