th se DEPARTMENT OF AGRICULTURE, 
BUREAU OF ENTOMOLOGY—BULLETIN No. 92. 
L. O. HOWARD, Entomologist and Chief of Bureau. 
WHITE FLIES INJURIOUS TO CITRUS 
IN FLORIDA. 
BY 
A. W. MORRILL, Pu. D., 
AND 
E. A. BACK, Pu. D. 
IssueD Juny 12, 1911. 























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WASHINGTON: 
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