Technical Series, No. 27, Part I. , 
U. S. DEPARTMENT OF AGRICULTURE/ 
BUREAU OIP ENTOMOLOGY. 
L. 0. HOWARD, Entomologist and Chief of Bureau. 
CLASSIFICATION OF THE ALEYRODIM: 
PART I. 
BY 
A. L. QUAINTAjNTCE, 
In Charge of Deciduous Fruit Insect Investigations. 
AND 
A. C. BAKER, 
Expert. 
Issued March 6, 1913. 
WASHINGTON: 
GOVERNMENT PRINTING OFFICE. 
1913. 
