10 



Proceedings, 1922 



as yet been very little explored for Ortlioptera and doubtless many 

 interesting species remain in these areas to be recorded. 



Acknowledgements are dvie to Messrs. James A. G. Rehn and Morgan 

 Hebard of the Academy of Natural Sciences of Philadelphia, who have 

 very materially aided the author, by determining a large percentage of 

 the species collected during the past three years, and by straightening 

 out many problems of synonymy and supplying many interesting notes 

 on distribution, etc., and also to Dr. E. M. Walker of the University of 

 Toronto, and Mr. Norman Criddle of the Dominion Entomological 

 Branch, Ottawa, for the determination of material. 



List of Chief References 



Caudell, A. N. Notes on .Some Orthoptera from British Columbia. 

 Ent. News. XV. p. 62, (1904). 



The Genus Cyphoderris. Jour. N. Y. Ent. Soc. XII, 

 p. 47 (1904). 

 " The Decticinae of North America. Proc. U. S. Nat. 



Mus., XXXII, p. 285 (1907). 

 " Notes on Some Western Orthoptera; with the Descrip- 



tion of One New Species. Proc. U. S. Nat. Mus. XXXIV, 

 p. 70 (1908). 

 " The Genera of the Tettiginiid Insects of the Sub- 



family Rhaphidophorinae Found in America North of 

 Mexico. Proc. U. S. Nat. Mus. XLIX, p. 65.5 (1916). 

 Caulfield, F. B. A Sketch of Canadian Orthoptera. Rep. Ent. Soc. 



Ont. XVIII, p. 59 (1888). 

 Rehn, J. A. G. Records of Orthoptera from Western Canada. Ent. 



News. XXI, p. 23 (1910). 

 Seudder, S. H. A Revision of the Orthopteran Group Melanopli. Proc. 

 U. S. Nat. Mus. XX, p. 1 (1897). 

 " The North American Ceuthophili. Proc. Amer. Acad. 



Arts. Sci. XXX, p. 17 (1894). 

 Walker, E. M. Records of Orthoptera from tlie Canadian Northwest. 

 Can. Ent. XXXVIII, p. 55 (1906). 

 " The Canadian Species of Trimerotropis. Can. Ent. 



XXXIV, p. 1 (1902). 

 " The Orthoptera of Western Canada. Can. Ent. XLII, 



p. 293 (1910). 



