432 



FRUIT INSECTS 



caterpillar may destroy more 

 developing fruits in June 

 than half a dozen cater- 

 pillars working in the larger 

 berries later in the season. 

 Yet this spring brood and 

 its work rarely attracts at- 

 tention because the slightl}^ 

 webbed portions of the clus- 

 ters of blossoms or young 

 fruits do not make infested 

 clusters especially conspicu- 

 ous (Figs. 371 and 372) and 

 the spring brood is comparatively small. 



By July 1 in New York many of the caterpillars have at- 

 tained full size ; they are then about three eighths of an inch 



Fic. 370. — Egg of grape-berry motn on 

 grape, greatly enlarged. 



Fig. 371. 



Work of spring brood of grape-berry moth caterpillars among 

 blossoms and young fruits in June. 



long and vary in color from dark greenish to purplish with a light 

 brown head and blackish thoracic shield (Fig. 373). They go 

 on to the leaves, where they make their peculiar cocoons, as shown 



