i'A THE KANSAS PEACH. 



the terminal buds before the starting of the leaves in April apparently 

 cannot be questioned, but seems not to be the normal course, as shown 

 by the observations since made. 



In our experience, the larvae begin to migrate only after the new 

 foliage has begun to put out, and they [then] attack the new shoots 

 at any point, generally, however, from one-half inch to an inch from 

 the apex, either near or in the crotch formed by the leaf petiole and 

 the stem. The longest burrow observed was one and one-half inches 

 and the shortest one-fourth inch. Sometimes the burrow extends 

 about one-eighth inch above the entrance, and occasionally the larvae 

 simply eat into the shoot as far as the pith and then go elsewhere. 

 The larva? are seemingly restless and not easily satisfied, and are con- 

 tinually moving from one shoot to another, and are most active travel- 

 ers. In this way a single larva may destroy or injure several shoots 

 before reaching maturity, thus greatly increasing the damage. 



When working in the succulent new growth the larva bores rapidly, 

 sufficiently so at least to excavate a burrow two-thirds of its length in 

 an hour. The length of time spent by the hibernated larva in com- 

 ing to full growth in the green shoots is comparatively short, not ex- 

 ceeding ten to fifteen days. In California, and also in the District of 

 Columl)ia, the larvae begin transformation to pupae in the latter part 

 of April, and the moths of the first brood emerge throughout May. 

 In Colorado, Mr. Gillette has bred the moths the 1st of June and also 

 toward the end of July. In Oregon, Mr. Cordley secured his first 

 pupa on May 8. and his first moth on May 17. 



The adult larva tapers strongly toward either end, and attains a 

 length of three-eighths to half an inch, or slightly more when in mo- 

 tion. It is of a dull, reddish-brown color, the reddish color predomi- 

 nating before maturity and the latter after maturity, and the head and 

 the cervical and anal shields are dark brown or almost black. The 

 space between the segments, and especially between the second and 

 third thoracic segments, is noticeably light colored. The hairs are 

 long, and spring singly from minute tubercles. Other details of 

 structural features are shown in the illustration. Fig. 14, h. In con- 

 finement, the larva on reaching full growth spins a scanty web — in 

 no sense a close cocoon — in the leaves and rubbish about the trees or 

 on the trees in the dried and shriveled leaves of the injured shoots, or 

 it attaches itself exposed on the twigs or bark. After thus securing 

 itself the larva immediately pupates, becoming a brown, rather robust, 

 chrysalis. Fig. 14, c, d. In midsummer these transformations are 

 very quickly accomplished. A larva, for example, which webbed up 

 June 29 pupated July 1, and the adult emerged July 8. 



Mr. Ehrhorn states that it is very difficult to find the pupae in or- 



