44 



HALF nOUES WITH INSECTS. [Packard. 



Fig. 34. 



Figure 34, i, shows the eggs deposited along the under side 

 of the midribs of the leaf; 2, the holes bored by the very 

 3'oung larvie ; and 3, those eaten by the larger worms. 



Figure 35 (a, enlarged) represents the worm when fully 

 grown. It is then cylindrical, pale green, with a pale green 

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

 segmcxit from the end of the body, togetlier with the last or 

 anal segment, are yellow ; the sixteen false or abdominal legs 

 are also ^-ellow ; the six thoracic legs are horn-colored. The 

 body is transversely wrinkled, especially on the back, and is 



slightly hairy. The 

 eyes and jaws (man- 

 dibles) 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 w^hich 

 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 trans- 

 versely oval, and arranged in two regular rows. Moreover, 

 a still more important characteristic of the worm in this 

 state is the jet-black head, which in the fully grown insect is 

 pale pea-green. 



In the region of Salem they may be found late in May or 



12 



Eggs of Imported Currant Saw Fly. 



