LEPIDOPTERA 



395 



FIG. 276. Round-head apple tree borer, showing the three stages of development 

 metamorphosis). The destruction is chiefly by the larva, a; b, the pupa; c, the adult beetle. 

 (Economic Entomology.) 



FIG. 277. Apple wood showing the work of the round-head borer, a, b, puncture in 

 which egg was laid; g, pupa in its case; e. /., hole from which beetle has emerged. (Economic 

 Entomology.) 



FIG. 



278. Pea-weevil, c, larva; a, pupa; b, adult all enlarged. The insect attacks stored 

 grain, peas, beans, and other seeds. (Economic Entomology.) 



