s 



353.9 



E3R 



1921 NO. 18 



1 



University of Montana 



Agricultural Experiment Station 



BOZEMAN, MONTANA 



KILLETIN NO. 139 



I \\l \RY. 1921 



Eighteenth Annual Report of the 



State Entomologist 



of Montana 



The Thistle Butterfly (Vanessa cardni h.), a serious pest of cultivated sunflowers. 



BY 



R. A. COOLEY 



STATE PUBLICATIONS COLLECTION 



OCT 3 12007 



MONTANA STATE LIBRARY 



1515 E. 6th AVE. 

 HELENA, MONTANA 59620 



