New York Agricultural Experiment Station. 621 



the canes and leaf petioles near the curled leaves. The females 

 were apparently busy puncturing the canea^ as shown in Fig. 4, 

 Plate III, and depositing their eggs. Whether the females feed 

 when they puncture the cane or simply puncture it to irritate and. 

 cause it to curl, I can not say. 



Because of the lack of breeding facilities the observations were 

 confined to the field. Hence the exact period for the deposition of 

 the eggs, the time required for the latter to hatch, the number of 

 moults and lengths of larval and pupal stages were not determined. 



Conclusion. — From the observations made the life- history is 

 approximately as follows : The adult females deposit their eggs 

 during the month of June and possibly July, on blackberry. The 

 larvse do not reach the pupal stage until September, change to 

 adults within a month and hibernate as adults wherever they can 

 find a dry protected place. 



From the statements of Dr. Riley, I understand that only the 

 adult forms have been captured on pine trees, where they possibly 

 feed and pair during the spring. Have not observed them on the 

 Dewberry, "Running- vine Blackberry." 



Description — The eggs are light yellow in color and will not be 

 found without the aid of a lens. They are deposited on the leaf 

 petioles and on the canes near the curled leaves. These portions of 

 the plants are quite hairy, and the eggs are held by the hairs and not 

 inserted into the epidermis. 



As a general rule, only the larval form will be noticed. lu the 

 larval stage they are nearly pure white, varying to greenish white, 

 and to the unaided eye resemble some of the "leaf mites " or spiders 

 more than they do plant lice. If they occur in numbers they appear 

 to be covered with a white powdery secretion, which in reality is the 

 excreta. When the larvfe are nearly full grown, or have changed to 

 the purpal stage they are of a pale yellow or yellowish white color. 



During the pupal stage they are nearly as broad as long and 

 appear to be nearly circular in outline. 



To the unaided eye the most distinctive character of the adult or 

 full-grown insect is the yellowish-brown color of the whole body 

 excepting the eyes, which are dark brown, and the three yellowish- 

 brown bands on the wings, shown in Fig. 4, h, Plate III, as black 

 bands. 



