Bui. 97, Part VII, Bureau of Entomology, U. S. Dept. of Agriculture. 



Plate XVIII. 



The Grape Scale. 



Fig. 1.— Showing how the young scales settle, more or less, in longitudinal rows. Fig. 2.— Full- 

 grown male and female scales; also many parasitized individuals. Fig. 3. — Pygidium of adult 

 female, showing circumgenital glands and orifice, lobes, and spines. (Original.) 



