GRASSHOPPERS — GURNEY AND BROOKS 85 



1908. Melanoplus. In Godman and Salvin, Biologia Centrali- Americana, 



Orthoptera, vol. 2, pp. 317-327. 

 Brunner von Wattenwyl, C. 



1861. Orthopterologische Studien. Verb. Zool. Bot. Gesell., Wien, vol. 



11, pp. 221-228. 

 1900. Orthoptera. In Von Ihrer, Konigl. Hoheit der Prinzessin Theresa 



von Bayern auf einer Reise in Sudamerika gesammelte Insekten. 



Berliner Ent. Zeit., vol. 45, pp. 253-258, 1 pi. 



BUCKELL, E. R. 



1921. Notes on the ecological distribution of some Orthoptera from the 



Chilcotin District of British Columbia. Proc. Ent. Soc. British 

 Columbia, syst. ser., no. 18, pp. 32-38. 



1922. A list of the Orthoptera and Dermaptera recorded from British 



Columbia prior to the year 1922, with annotations. Proc. Ent. 

 Soc. British Columbia, syst. ser., no. 20, pp. 9-41. 

 Burks, B. D. 



1953. The mayflies, or Ephemeroptera, of Illinois. Bull. 111. Nat. Hist. 



Surv., vol. 26, pp. 1-216, 395 figs. 



Cantrall, Irving J. 



1943. The ecology of the Orthoptera and Dermaptera of the George Re- 

 serve, Michigan. Univ. Michigan Misc. Publ. Mus. Zool., vol. 

 54, pp. 1-182, 10 pis. 



Cantrall, Irving J., and Young, Frank 



1954. Contrasts in the orthopteran faunas of grassland, forest, and transi- 



tional areas in southern Indiana. Proc. Indiana Acad. Sci., 

 vol. 63, pp. 157-162. 

 Caudell, a. N. 



1900. Orthoptera. (Papers from the Harriman Alaska Expedition, XV.) 



Proc. Washington Acad. Sci., vol. 2, pp. 511-512. 

 1903. Notes on Orthoptera from Colorado, New Mexico, Arizona, and 

 Te.xas, with descriptions of new species. Proc. U. S. Nat. Mus., 

 vol. 26, pp. 775-809, 1 pi. 

 1908. Notes on some western Orthoptera; with the description of one new 



species. Proc. U. S. Nat. Mus., vol. 34, pp. 71-81. 

 1915. Notes on some United States grasshoppers of the family Acrididae. 

 Proc. U. S. Nat. Mus., vol. 49, pp. 25-31. 

 Cockerell, T. D. a. 



1888. Entomological work in Colorado. Entomologist, vol. 21, pp. 298-305. 



1889. On the variation of insects. Entomologist, vol. 22, pp. 125-130. 

 Coquillett, D. W. 



1892. Report on the locust invasion of California in 1891. U. S. Dep. Agr., 

 Div. Ent., Bull. 27, pp. 34-57. 



COOLET, R. A. 



1904a. Notes on a grasshopper outbreak in Montana. U. S. Dep. Agr., 



Div. Ent. Bull. 46, pp. 41-43. 

 1940b. First annual report of the State Entomologist of Montana. Montana 



Agr. Exp. Sta. Bull. 51, pp. 199-274. 

 1918. Fifteenth annual report of the State Entomologist of Montana. 



Montana Agr. Exp. Sta. Bull. 124, pp. 195-208. 

 1925. Montana insect pests for 1923 and 1924. Univ. Montana Bull. 170, 



pp. 1-30. 



