INSECTS INJURIOUS TO THE RASPBERRY. 



ATTACKING THE EOOTS. 



Fig. 313. 



No. 174. — The Raspberry Root-borer. 



^geria ruM Riley. 



This borer is quite distinct from the cane-borer, No. 176, 

 that insect being without legs in the larval state, while this 

 one has sixteen legs, a feature which will enable any person 

 readily to distinguish the one from the other. The rasp- 

 berry root-borer belongs to the same family of clear-winged 

 moths as the peach-borer, and there is a striking resem- 

 blance between the two species in the several stages of their 

 existence. 



Both the male and the female moth are shown in Fig. 313, 

 where a represents the male, and b the female. The front 

 wings are transparent, veined with 

 black or brownish, and heavily mar- 

 gined with reddish brown ; the hind 

 wings are transparent, with dark veins, 

 and both wiii2:s are frino;ed with dark 

 brown. The body is black, prettily 

 banded and marked with golden yel- 

 low, as in the figure. The wings, 

 when expanded, will measure from 

 three-quarters of an inch to an inch 

 across. 



The eggs are deposited by the female 



durino; the hot summer weather on the 



cane of the raspberry, a short distance above the ground. 



The young larva when hatched eats its way through the cane 



to the centre, where it feeds upon the pithy substance in 



303 



