STATE OF ILLINOIS 

 Henry Horner, Governor 

 ^JilUM'^^^^^'^ ^^ ^<EGISTRATigi;Si^^D EDUCATION' 



BOARD OF NATURAL RESOURCES AND CONSERVATION 

 John J. Hallihan, Chairman 



William Trelease. D.Sc. LL.D., William A. Noyes. Ph.D., LL.D.. Chem. D.. 

 Biology D.Sc., Chemistry 



^^''Vor^strT^'''^^' ^^•°' ^•^'••''*^^SoN S. Bastin. Ph.D.. Co/ogy 



I.. R. HowsoN", B.S.C.E., C.E., En- Arthur Cutis Willard. D.Eng., LL.D.. 



gineering President of the £/w»v«-5*9Ma!JS*(K>?o<w^Vo\«\oH 



NATURAL HISTORY »Mfc5®Y DIVISION 

 Urbana, Illinois 



SCIENTIFIC AND TECHNICAL STAFF 



The«ij^»**. Prison, Ph.D., Chief 



SECTION OF ECONOMIC ENTO- SECTION OF AQUATIC BIOLOGY 



MOLOGY David H. THOMjjSDiUifflUJ-w2tfe(*t 



W. P. Flint. B.S.. Chief Entomologist gist ^W^^^^fiiW tf^^^ 



C. C. CoMPTON, M.S., Associate Ento- George W\ Bennett. Ph.D.. Ltmnol- 



l>)t><lltedK*6SKV>*\ ogtst 



M. D. Farrar. Ph.D.. Research Ento- ^''z,!oiogfst "*''^^''' ^^•^- -'^""''^«' 



mologist _ „ ^ . , c- , C. L. SCHLOEMER, Ph.D.. Assistant 



J. H Bigger. B.S.. Associate Ento- Aquatic Biologist 



S. a ChIndler. B.S.. Southern Field ^FSJ^^??, J??: ^S,^^^? RESEARCH 



Entomologist ^^^^^ /^^ MANAGEMENT 



L. H. Shropshire. M.S.. Northern Ralph E. Yeatter. Ph.D.. Game 



Field Entomologist Specialist 



W^ E. McCauley, M.S.. Assistant C. S. Spooner, Jr., M.S.. Junior Bt- 



Entomologist o'o«'^' 



C. J. W^einman. M.A.. Assistant En- SECTION OF WILDLIFE 



tomologisl EXPERIMENTAL AREAS 



^i^^I'a. Kearns^ Ph.D.. Research Arthur S. Hawkins, M.S., Came 



W'VWR»P^W«yS\M6^o/o.sy Technician o»«»«\o"<^ oi^^Vl 



Arthur E. Ritcher. B.A., Research F. C. Bellrose, Jr., B.S.. Assistant 



Fellow in Entomology Game Technician 



R. C. Rendtorff. M.S., Research COOPERATIVE WILDLIFE RES- 



in Entomology ^.. ^. Biological Survey) 



SECTION OF INSECT SURVEY H. G. Anderson. M.S.. Junior Bi- 

 ologist 



H. H. Ross, Ph.D.. Systematic En- Louis G. Brown. B.S., Junior Biol- 



tomologist ogisl 



Carl O. Mohr, Ph.D., Associate En- R. E. Hesselschwerdt. B.A. Junior 



tomologist. Artist Biologist 



B. D. BukKS, Ph.D.. Assistant En- SECTION OF APPLIED BOTANY 



tomolosist Ajfj) PLANT PATHOLOGY 



.il^£:<t^»lK B.S.. Assistant Ento- ^^ ^.^^^^ Ph«b»5.«\WlbllT»^io<l 



"""^^^''^ '*=»o* »it«4im^«5. Carter. Ph.D., Assistant b.la- 



SECTION OF FORESTRY _, nisi „ o r. ,j o , 



T 17 T^ »f T. r- . • r- G. H. BoEWE. M.S., Field Botiimst 



James E. Davis. M.F.. Extension For- ' ,,^.„,^„r. 



ester SECTION OF PUBJ.ICATIONS 



Lee E. Yeager, Ph.D.. Forester James S. Ayaks, B.S.. Editor 



(70738— 2M— 1-39) 



>2 



