INSECTS INFESTING THE GRAPE. 



191 



The perfect insect or moth (Fig. 176, 4 and J,) is of a l)hick 

 color, the fore-wings marked with two white spots and the hind 

 wings with only one white spot — hut this is sometimes divided 

 into two spots ; all of the wings are bordered with white. 



Fig. 176. 



Fig. 176. — Grape Leaf-folder ; /, the caterpillar — color, green 

 or yellowish ; ~, the head and fore part of its l)ody. enlarged ; 

 5, the pupa — color, brown ; .^, the male motli — colors. Ijlack 

 and white ; J, the female moth — colors, black and white. 



Remedy. — Use No. 24 ; where seriously infested use Xo. 5 

 or 7, with an equal quantity of Xo. 9. 



CHAPTER CIX. 



The Grapevine Plume. (Cal.) 



( Pterophoi-HK perisiy'U dactyl us. — Fitch. ) 



Order, Lepidoptera ; Family, Pterophorid.t:. 



[Living in a rolled grape leaf, upon which it feeds ; a small 

 pale greenish caterpillar, about six lines long, with numerous 

 spreading clusters of whitish hairs.] 



This caterpillar (Fig. 177a) usually fastens the opposite 

 edges of a leaf together with silken threads, but it sometimes 

 fastens several leaves together, forming a large cavity in whicli 

 it resides. When about to pupate — which is about the tenth 

 of May — it suspends itself by the hind feet. The pupa (Fig. 

 1776) is angular, and the anterior end appears as if it had 

 been obliquely cut oft'; on the middle of the back are two 

 angular projections. 



