U. S. DEPARTMENT OF AGRICULTURE. 



DIVISION OF ENTOMOLOGY— BULLETIN No. 43. 



L. O. HOWARD, Entomologist. 



A BRIEF ACCOUNT 



OF THE 



w m^mu\x^ 



iN 



um. 



BY 



F. TI. CHITTED DEIST, 



ENTOMOUKiisT IN ClIAWilC OK liUKlCDING KXPKKIMKNT.S. 



WASHINGTON: 



GOVERNMENT PRINTING OFFICE. 



1 D 3 . 



