21 
same branch. It winters in the egg stage. The young hatch in May; 
the males issue in the summer. There is but one brood a year. It is 
practically confined to the grape, but has been found on a few other 
plants, and may spread to fruit trees. 
Fig. 10. — Aspidiotus rapax. Scales on twigs, and enlarged. (Howard.) 
THE PEACH SCALE. 
(Diaspis pentagoria Targ. Tozz. — fig. -11. ) 
The peach scale, sometimes known as the '"whitewash scale,' 1 is of a 
ig] 
gra} r ish white color, rather flat and irregularly circular or slightly 
Fig. 11— Diaspis pentagona: a, infested branch; h, female; c, male; d, group of males. (Howard.) 
ovate in outline, never as elongate as the scurfy bark-louse. The 
exuvium is often a little way from the margin, and is yellowish or 
