5TATL HORTICULTURAL COMMISSION 7^^(/ 



E.LLWOOL? COOPER, Commissioner 



PHL PLAR THRIP5 



(Luthrips pyri)rt^ 



BY 



DUDLEY MOULTON 



Entomologist for Santa Clara County, California 



ILLUSTRATED WITH ORIGINAL DRAWINGS BY W. 5. ATKINSON 

 AND PHOTOGRAPHS BY A. P. HILL 



W. W, SHANNON, 



SACRAMENTO '^^^^JSRIC'U^ 



SUPT. STATE PRINTING 

 1905 



