Bul. 97, Part Vil, 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.) 
