Bui. 885, U. S. Dept. of Agriculture. 
PLATE IV. 
1 
m^ 
flflBHBI^Ht' ■ 
Fig. I.— Infested Orange Leaves from Tree Shown in Plate I. Taken 
in October, 1918. 
In April, 1919, due to heavy shedding of infested leaves during the dry season, the tree was only 
lightly infested. 
• 
I 
n 
■ 
1 
{ 
Fig. 2.— Pupa Cases of Chrysopa sp., the Larv/e of which are Predatory 
on All Stages of Aleurocanthus woglumi. 
Note the masses of empty skins of the victims. 
THE BLACK FLY. 
