Technical Series, No. 27, Part II. 



U. S. DEPARTMENT OF AGRICULTURE, 



L. 0. HOWARD, Entomologist and Chief of Bureau. 



0LA8SIFICATI0N OF THE ALEYRODID.E. 



PART II. 



BY 



A. T.. QUAINTANCE, 



In Charge of Deciduous Fruit Insect Investigations^ 



AND 



A. C. BAKER, 



Expert. 



Issued .September 9, 1914. 



WASHINGTON: 



GOVERNMENT PRINTINO OFFICE. 



1914. 



