350 - Report or THE ENTOMOLOGISTS OF THE riley 
which they make. All of the soft parts of the leaves are finall- 
devoured, leaving only the midrib and larger veins. (Plate 
XXIV.) | | 
When the bushes are badly infested the new canes also suffer 
severe injury. The young expanding leaves are first devoured 
and finally in some instances the bark and succulent wood of the 
new growth is injured. (Plate XXV.) 
Injury to the buds and young fruit.— The injury to the buds 
and fruit is much less extensive than to the leaves. On the Shaffer 
raspberries, in the field previously referred to, small percentages 
of the buds and fruits were injured. In every instance the buds 
and fruits were only partially devoured, the larvee usually eating 
away a portion from the side as shown at Plate XXVI, Fig. 1. 
DESCRIPTIVE DETAILS. 
DESCRIPTIONS AND LIFE HISTORY. 
First appearance wm the spring.— The time when the adults 
come out of the ground in the spring undoubtedly varies accord- 
ing to the season. During the past 2 years the adults were not ob- 
served in the vicinity of Geneva before May 10. "Last spring they 
were very common by May 25. 
The egg.— Egg laying begins soon after the adults appear. 
Last spring a few eggs had been laid by May 18. May 27 the 
eggs were abundant. ‘They are deposited from the under surface 
of the leaf. The female makes a slight incision with her saw- 
like ovipositor (Plate XXVIII, to the right of Fig. 2) and forces 
the egg under the cuticle and close up to the leaf vein near which 
the incision is made. Plate XX VI, Fig. 2, is from a photograph of 
the under surface of a raspberry leaf showing the eggs, nearly 
ready to hatch, natural size. Fig. 3 is enlarged from a portion of 
the same leaf. (The engraver has made the eggs in this figure 
show more distinctly than natural.) 
_ When first deposited the eggs measure about 0.8 mm. in length. 
In about 48 hours they have increased slightly in size and con- 
