Il8 ENTOMOLOGICAL NEWS. [April, '05 



considerable number of those on the leaves of canes kept in 

 water hatched, as did a greater number in the field. These 

 experiments indicate that the eggs need a certain amount of 

 moisture in order to develop properly. They hatched during 

 the third week in September. A large number of those in 

 the field hatched on the igth to 2ist of September. 



When the egg is ready to hatch the larva makes a small, 

 round hole in one end of the shell and crawls out. At this 

 stage the larvae are about y of an inch long, nearly white, and 

 clothed with a few colorless hairs ; the head is dark brown. 

 The larvae in the field soon disappeared. Late in December, 

 1903, an effort was made to locate them ; plants were dug up 

 and the canes and roots split open, but not a single larva could 

 be found. A number of young plants were selected on the 

 leaves of which, in autumn, numerous eggs had hatched ; these 

 were taken up and carefully washed, preparatory to splitting 

 them. A number of small, blister-like elevations were noticed 

 on the bases of these canes, on the part below the surface of 

 the ground. On opening these spots, each of them contained 

 a single larva. The larva had crawled down the stem, eaten 

 a hole through the epidermis, formed a round cavity in the 

 bark just large enough to contain it, curled up, and become 

 inactive. Other plants were examined. The larvae had not 

 only buried themselves in the bark of the canes, but in many 

 instances were found several inches below the surface of the 

 ground, under small scales on the roots, just beneath laterals, 

 and in crevices of the roots. Many were found in these winter 

 quarters. At this time of the year the larvae are very small, 

 having increased about one- third in length. 



On December 29, 1904, the writer dug up about 15 hills of 

 blackberry canes, washed the roots, and searched for larvct-. 

 Four were found in winter quarters just beneath the epidermis. 

 This observation further substantiates the one made the pre- 

 vious year and also shows that a second brood is just beginning 

 to appear. 



The writer has not had an opportunity to study the habits of 

 the larvae after they begin active feeding in the spring. Those 

 that hibernate in the bark of the cane during the winter un- 



