STATE OF ILLINOIS 

 Henrv Horner, Governor 

 DEPARTMENT OF REGISTRATION AND EDUCATION 

 John- J. Hallihan, Director 



BOARD OF NATURAL RESOURCES AND CONSERVATION 



Jonx J. Hallihan', Chairman 

 William Trelease, D.Sc, LL.D., 



Biology 



Henry C. Cowles. Ph.D., D.Sc. 

 Forestry 



\ViLLi.\M A. XoYES. Ph.D., LL.D., Chem. D. 

 D.Sc, Chemistry 



Edson S. Basti.v, Ph.D., Geology 



L. R. HowsoN, B.S.C.E., C.E., En- Arthur Cutts Willard. D.Eng., LL.D. 



gtneertng 



President of the University of Illinois 



NATURAL HISTORY SURVEY DIVISION 

 Urbana, Illinois 



SCIENTIFIC AND TECHNICAL STAFF 



Theodore H. Frisox, Ph.D., Chief 



SECTION OF ECONOMIC ENTO- 

 MOLOGY 



W. P. Flint, B.S.. Chief Entomologist 



C. C. CoMPTON, M.S., Associate Ento- 

 mologist 



M. D. Farr.\r, Ph.D., Research Ento- 

 mologist 



J. H. Bigger, B.S., Associate Ento- 

 mologist 



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

 Entomologist 



L. H. Shropshire, M.S., Northern 

 Field Entomologist 



W. E. McCauley, M.S., Assistant 

 Entomologist 



C. J. Weinm.\n', M.A., Assistant En- 

 tomologist 



C. W. Kearns, Ph.D., Research 

 Fellow in Entomology 



Arthur E. Ritcher, B.A., Research 

 Fellow in Entomology 



R. C. Rendtorff, M.S., Research 

 Fellow in Entomology 



K. L. Knight, M.S., Research Fellow 

 in Entomology 



SECTION OF INSECT SURVEY 



H. H. Ross, Ph.D., Systematic En- 

 tomologist 



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

 tomologist, Artist 



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

 tomologist 



G. T. Riegel, B.S., Assistant Ento- 

 mologist 



SECTION OF FORESTRY 



J.\MES E. Davis, ALF., Extension For- 

 ester 

 Lee E. Yeager, Ph.D., Forester 



SECTION OF AQUATIC BIOLOGY 



David H. Thompson, Ph.D.. Zoolo- 

 gist 



George W. Bennett, Ph.D., Limnot- 

 ogist 



Donald F. Hansen, Ph.D., Assistant 

 Zoologist 



C. L. Schloemer, Ph.D., Assistant 

 Aquatic Biologist 

 SECTION OF GAME RESEARCH 

 AND MANAGEMENT 



R.\lph E. Yeatter, Ph.D., Game 



Specialist 

 C. S. Spooner, Jr., M.S., Junior Bi- 

 ologist 

 SECTION OF WILDLIFE 

 EXPERIMENTAL AREAS 

 Arthur S. H.a.\vkins, M.S.. Game 

 Technician 



F. C. Bellrose. Jr.. B.S.. Assistant 

 Ga m e Tech n ic ia n 



COOPERATIVE WILDLIFE RES- 

 TORATION PROGRAM 



{State Department of Conservation and 

 U. S. Biological Survey) 



H. G. Anderson, M.S.. Junior Bi- 

 ologist 



Louis G. Brown. B.S., Junior Biol- 

 ogist 



R. E. Hesselschwerdt. B.A. Junior 

 Biologist 

 SECTION OF APPLIED BOTANY 

 AND PLANT PATHOLOGY 



L. R. Tehon, Ph.D.. Botar.ist 



J.C.C.\rter, Ph.D.. Assistant Bota- 

 nist 



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



SECTION OF PUBLICATIONS 



T.xMES S. Avars. B.S., Editor 



(70738— 2M— 1-39) 



