LEPIDOPTERA, 



255 



cut from the walls of its mine and lined with silk. It then 

 seeks a safe place in which to fasten this case and pass the 

 winter. This is usually on the trunk or on a branch of the in- 

 fested tree (Fig. 302). Once some of these migrating larvse 

 dropped from a tree upon the writer's hat and carefully 



FIG. 302. Aspiiiisca. splendoriferella : a, leaf of apple showing work ; b, summer larva ; 

 c, larva in case travelling ; </, cases tied up for winter ; e, hibernating larva ; f, pupa ; 

 g, moth ; /i, parasite. (From the Author's Report for 1879.) 



fastened themselves to the band with misplaced confidence 

 that they could remain there till spring. The adult has 

 gray and golden wings with silvery and dark markings. 



The Maple-leaf Cutter, Incurvaria acerifoliella (In-cur- 

 va'ri-a a-cer-i-fol-i-eria). This insect illustrates still another 



