68 INSECTS INJURIOUS IN 1902. 

. 59.—Woolly aphis (Schizoneura lanigera Hausm.)—(a) agamic female; 
HG ob larval ingen (c) pupa; (d) winged female with antenna enlarged 
above; all greatly enlarged and with waxy excretion removed. 
After Marlatt, Division of Entomology, 
Dept. of Agriculture. 
hij} 
yj), A 

Fig. 60.—Woolly aphis.—(a) root of young tree illustrating deformation; (b) 
section of root with aphides clustered over it; (c) root louse, female; 
(a and b) natural size; (c) much enlarged. After Marlatt, 
Division of Entomology, Dep. of Agriculture. 
