ES 
Big }183.—Aspidiotus perniciosus Comst.: 
scale; a, ventral view of larva, showing sucking beak with the bristles seper- 
ated; b, dorsal view of same, somewhat contracted, with first waxy filaments 
appearing; c, dorsal and lateral views of same still more contracted, showing 
further development of wax secretion; d, later stage of the young scale—all 
greatly enlarged. From Div. of Entomology, Dep. of Agriculture. 
229 
SCALE-INSECTS, BARK-LICE, MEALY-BUGS. 
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SSN Nt 
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Young larve, and development of 
Fig. 184—Aspidiotus perniciosus Comst.: male—greatly enlarged. From Div. of 
Entomology, Dep. of Agriculture. 
