330 



FRUIT INSECTS 



Fig. 287. — Adult of the rasp- 

 berry cane-maggot. Enlarged. 



On leaving the egg shell 

 the young maggot crawls 

 down the shoot for a short 

 distance and then bur- 

 rows its way into the pith. 

 After tunneling about 

 half the length of the 

 shoot the maggot works 

 its way nearly out to 

 the bark and deftly con- 

 tinues its tunnel around 

 the shoot, thus girdling 

 it from the inside (Fig. 

 289). The part of the 

 shoot above the girdle 

 soon wilts, shrinks in size 

 and droops over. Soon 

 after the tip droops, a 



The flies appear in the latter 

 part of April, when the new 

 raspberry shoots are a few 

 inches in height, and the female 

 deposits her comparatively 

 large, prettily sculptured, elon- 

 gate white eggs loosely near the 

 tip of the shoot in the crotch 

 formed by the bases of the tip 

 leaves (Fig. 288). How soon 

 the eggs hatch is unknown, 

 but it is doubtless in a few 

 days. 



Fig. 288. — Egg of the raspberry cane-mag- 

 got in position at the base of a leaf ( X 8) . 



