222 ORTHOPTERA OF NOVA SCOTIA. — PIERS. 



1898-1901.— Walker, E. M. Notes on Some Ontario Acridiidse. 

 Can. Ent., vol. 30, Lond., Ont., 1898, pp. 122-126, 

 258-263; vol. 31, 1899, pp. 29-36, vol. 33, 1901, pp. 

 20-23. (Useful for comparative purposes. Lists 35 

 nominal species with notes on habits. In vol. 34, 

 1902, pp. 251-258, he extended the list to 47 species.) 



1900.— Scudder, S. H. List of the Orthoptera of New 

 England. Psyche, vol. 9, no. 293, Cambridge, Sept., 

 1900, pp. 99-106. (List of 98 species; useful for 

 comparison.) 



1901. Scudder, S. H. Catalogue of the Described Orthop- 

 tera of the United States and Canada. Proc. Daven- 

 port Acad, of Sc, vol. 8, Davenport, Iowa, 1901, 

 pp. 1-101. (List of 856 species, with synonyms 

 and geographic range.) 



1901. — Scudder, S. H. Alphabetical Index to North Ameri- 

 can Orthoptera described in the 18th and 19th cen- 

 turies. Occasional Papers, Bost. Soc. Nat. Hist., 

 vol. 6, Boston, 1901, 436 pp. (List of specific names^ 

 authorities and localities, without reference to synony- 

 my; of much use to the working orthopterist. An 

 exhaustive bibliography is given on pp. 349-399.) 



1903.— Blatchley, W. S. The Orthoptera of Indiana. 27th 

 Ann. Repot. Dept. of Geol. and Nat. Res. of Indiana, 

 1902, Indianapolis, 471 pp. Author's separates issued 

 5 Sept., 1903. (Although this deals with a particular 

 region and one somewhat far removed from us, still 

 it is one of the very best available manuals which 

 our student can use, and fully describes a large pro- 

 portion of the species found here, with keys, illustra- 

 tions, and a bibliography.) 



1904.— Walker, E. M. The Crickets of Ontario. Can. 

 Ent., vol. 36, London., Ont., 1904, pp. 142-144, 181-188, 

 248-255. (Useful for comparative purposes. Lists 14 

 nominal species, with notes on habits, etc.) 



