Bui. 885, U. S. Dept. of Agriculture. 
PLATE III. 
Fig. I.— Infested Lime Leaves Taken from Trees Shown in Figure 2, 
in May, 1919. Compare with Plate II, Figure I. 
Fig. 2— The Same Trees Shown in Plate II, Figure 2, Photographed in 
April, 1919, Shortly After the Beginning of the Rainy Season. 
Note the vigorous growth. 
THE BLACK FLY. 
