SCALE-INSECTS, BARK-LICE, MEALY-BUGS. 231 
. 185.—Aspidiotus perniciosus Comst.: a, adult female, ventral side; b, spinne 
pee ofthe same—greatly enlarged. After Div. of Entomology, Dep. of Agri 
culture. 
185 a.—Aspidiotus perniciosus Comst.: Development of male insect; a, ventral 
view of larva after first molt; b, same, after second molt; c and d, ventral and 
dorsal views. All greatly enlarged. After Howard and Marlatt, Div. of 
Entomology, Dep. of Agriculture. 
