Montana Agricultural College 

 Experiment Station 



F. B. LINFIELD. Oirector. Ij *Tj>/t/^'^^^ 



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BULLETIN No. 88. 



Ninth Annual Report of the 



State Entomologist 



of Montana 



Xline_ 



BY 

 R. A. COOLEY 



BOZEMAN, MONTANA 



FEBRUARY, 1912 



