37 



or sometimes in the immature fruit. The larva from the second brood 

 makes the little burrows in the bark in which the insect passes the 

 winter. The peach twig-borer feeds on all stone fruits. 



THE BAGWORM. 



( Thyridopteryx ephemerseformis Haw. — figs. 32 and 33. ) 



The winter cases or bags of this insect, 1^ to 2 inches long, are often 

 seen hanging from the branches of shade trees, particularly arbor- 



no. S2.—Tliijruiopteryx-ephemermfoii)iis. Cases; <(, one cut open. (Howard.) 



vit», locust, and basswood, but are not so common on fruit trees. 

 The adult insect is a moth; the female wingless; the male with four 



FIG S3 -Thyridopteryx ephemera^ormis.- a. larva; 6, head of same; c, male pupa; d, female pupa, 

 e, adult female; /, adult male— all enlarged. (Howard.) 



transparent wings and a black body. The female never leaves her 

 case alive, but in the fall deposits her eggs therein, drops out and dies, 



