8 



Injurious and Beneficial Insects. 



The first brood of worms appeared May 21st ; the second brood 

 June 25th." Fig. 1 shows the eggs deposited along the under 

 side of the mid-ribs of the leaf; 2, the holes bored by the very 

 young larvas ; and 3, those eaten by the larg6r worms. 



Fig. 2, (a, enlarged) represents the worm when fully grown. 



It is then cylindrical, pale green, with a pale green head, with 

 the segment next behind the head, and the third segment from 

 the end of the body, together with the last or anal segment 

 yellow ; the 16 false or abdominal legs are also yellow ; the 

 six thoracic legs are horn-colored. The body is transversely 

 wrinkled, especially on the back, and is slightly hairy. The 

 eyes are black, and the jaws (mandibles) are black, and on the 

 inner side of the edge reddish. It is about three-quarters of an 

 inch in length. 



Previous to the last moult, however, and before it has gained 

 its full size, preparatory to passing into the adult or winged 

 condition, the body is covered with black tubercles ; from each of 

 which arises a stiff black hair. There is also a supra-anal, or 

 dorsal black patch on the last segment of the body, from which 

 arises a pair of black spines. On the back of the false caterpillar 

 the tubercles become smooth and transversely oval, and arranged 



