STATE OF ILLINOIS 



DwiGHT H. Green, Governor 



DEPARTMENT OF REGISTRATION AND EDUCATION 

 Frank G. Thompson, Director 



BOARD OF NATURAL RESOURCES AND CONSERVATION 

 Frank G. Thompson, Chairman 

 William Trelease, D.Sc, LL.D., Biology* Arthur Cutts Willard, D.Eng., LL.D., 



Ezra J. Kraus, Ph.D., D.Sc, Forestry President of the University of Illinois 



L. R. HowsoN, B.S.C.E., C.E., Engineering Norman L. Bowen, Ph.D., Geology 



Roger Adams, Ph.D., D.Sc, Chemistry 



NATURAL HISTORY SURVEY DIVISION 



Urbana, Illinois 



Scientific .\nd Technical Staff 



Theodore H. Prison, Ph.D., Chief 



Florence A. Nyberg, Assistant to the Chief 



Section of Economic Entomology 



G. C. Decker, Ph.D., Entomolgist 

 M. D. Farrar, Ph.D., Research Entomolo- 

 gist 

 J. H. Bigger, M.S., Associate Entomologist 

 S. C. Chandler, B.S., Southern Field Ento- 

 mologist 

 James W. Apple, M.S., Northern Field 

 Entomologist (on leave) 



B. G. Berger, M.A., Assistant Entomologist 

 John M. Wright, B.A., Assistant Ento- 

 mologist (on leave) 



H. B. Petty^ Jr., M.A., Associate in Ento- 

 mology Extension 



C. J. Weinman, Ph.D., Special Research 

 Assistant 



Willis N. Bruce, B.S., Special Research 

 Assistant 



Section of Insect Survey 



H. H. Ross, Ph.D., Systematic Entomologist 



Carl O. Mohr, Ph.D., Associate Entomolo- 

 gist, Artist (on leave) 



B. D. Burks, Ph.D., Assistant Entomolo- 

 gist (on leave) 



Milton W. Sanderson, Ph.D., Assistant 

 Entomologist 



Phyllis A. Beaver, Laboratory Assistant 



Section of Forestry 



James E. Davis, M.F., Extension Forester 



Section of Aquatic Biology 



George W. Bennett, Ph.D., Limnologist 

 D. F. Hansen, Ph.D., Assistant Zoologist 

 Paul G. Barnickol, M.A., Ichthyologist 



Section of Game Research and Managemer 



R. E. Yeatter, Ph.D., Game Specialist 



Section of Wildlife Experimental Areas 



Arthur S. Hawkins, M.S., Game Tech 

 nician (on leave) 



F. C. Bellrose, Jr., B.S., Associate Gam 

 Technician 



Harold C. Hanson, M.S., Assistant Gam 

 Technician 



Section of Applied Botany and Plant 

 Pathology 

 L. R. Tehon, Ph.D., Botanist 

 J. C. Carter, Ph.D., Assistant Botanist 



G. H. Boevve, M.S., Field Botanist 



J. L. Forsberg, M.S., Research Pathologist 

 Bessie B. Henderson, M.S., Research Assist 

 ant 



Section of Publications 



James S. Ayars, B.S., Technical Editor 

 Eleanor G. Wolff, B.Ed., Assistant Ted 

 nical Editor 



Technical Library 



Marguerite Simmons, M.A., M.S., Techn 

 cat Librarian ^ 



Consultants in Herpetology: Howard K. Gloyd, Ph.D., Director of the Museum, Chicag 

 Academy of Sciences; Clifford H. Pope, B.S., Curator of Amphibians and Reptiles, Chict 

 Natural History Museum 

 •Deceased January 1, 1945. 



This paper is a contribution from the Section of the Cooperative Wildlife Restoration Program 



and the Section of Forestry. 



(84217— 3M— 6-45) 



