ORGANIZATION OF THE UNITED STATES DEPARTMENT OF AGRICULTURE 
WHEN THIS PUBLICATION WAS LAST PRINTED 
SECT CLOT I OfivA GrUCUll UG = eis oer ee Henry A. WALLACE. 
Wriders Secretar poe Ses SL. Sipe, REXFORD G. TUGWELL. 
BAISSUSLATUL IS CCHELOGY ee: Spa pee ya apngeiy ee M. L. Witson. 
Director of Extenston WOnke (a C. W. WARBURTON. 
Directoraof Fanances {an lasek ee a W. A. JUMP. 
Director Of. UNfOr mations: secu s Sapa iyres 2 ee M. S. EISENHOWER. 
DD ECLOT Of ECTS ON TCU en eee eee W. W. StTocKBERGER. 
Director of ke esearehs sate. Sara ee De JAMES T. JARDINE. 
OLtEeE OT SS et cap UNE Leet ig iE Warp mapa Taget Mastin G. WHITE. 
Agricultural Adjustment Administration__._ H. R. Totuny, Administrator. 
Bureau. of Agricultural. Hconomics_________- A. G. Buack, Chief. 
Bureau of Agricultural Engineering____---- S. H. McCrory, Chief. 
Bureau of-animal Industpye 2 JoHN R. Mouter, Chief. 
Bureau of Biological Survey=22 eae ee Ira N. GABRIELSON, Chief. 
Bureau of Chemistry and Soils] 3 a= 2 Henry G. Knieut, Chief. 
Urea Of. DAttYelnd USTs ee O. E. Resp, Chief. 
Bureau of Entomology and Plant Quarantine. Ler A. Strone, Chief. 
Office of Experiment Stations__.._.-------- JAMES T. JARDINE, Chief. 
Food and Drug Administration__-_.._-_--- WALTER G. CAMPBELL, Chief. 
HOrESt Ervl Ce UNL, eT IE 2 FERDINAND A. S1ucox, Chief. 
Grain Futures Administration__...._------ J. W. T. Duvet, Chief. 
Bureau of Hlomeyiconomics = ee Louise STANLEY, Chief. 
EAB OT. ay scl ge Sy EEG EOIN SNARE CLARIBEL R. Barnett, Librarian. 
Bureau. of Plant Industiyse hs ee eae Freperick D. Ricury, Chief. 
ISUTEGU. Of TE UOLIC LOGS sa ae eye pase anans Tuomas H. MacDona.p, Chief. 
Soul Conservation Services ss sas H. H. Bennett, Chief. 
Weather: Bur eaiiiejens as qlac up tye agi ina ye Re Wiuuis R. Greae, Chief. 
This publication is a contribution from 
Bureau of Entomology and Plant Quarantine. Ler A. StronNG, Chief. 
Division of Insect Identification____-_-_-_- C. F. W. Muessrseck, Principal 
Entomologist, in Charge. 
38 
U.S. GOVERNMENT PRINTING OFFICE: 1936 
for sale by the Superintendent of Documents, Washington, D. C. - - - - - Price 5 cents 
