



1913 





10 



on 



August 



I 



3 







2 



II 







4 



I 







5 



22 







9 



17 







II 



6 







16 



8 







22 



274 MAINE AGRICULTURAL EXPERIMENT STATION. I915. 



1914 



1 on July 18 



2 23 



2 24 



3 25 

 5 27 

 3 28 

 7 August 3 

 I 4 



3 5 

 7 10 



4 17 

 I 21 

 I • 28 



The majority emerge in early August which further bears out 

 the conclusion that the greater number pupate in late July and 

 that the pupal period is about 9 days. 



The adults feed very greedily on the berries, eating off thi. 

 skin and sucking up the juices. This condition is illustrated m 

 figure 60 C. They refuse to eat the leaves even when there is 

 no fruit available. These weevils enter mto hibernation shortly 

 after they emerge. In the spring the over-wdntering beetles 

 will eat the leaves quite readily leaving them punctured with 

 small dots. 



Generations. There is probably but one generation in Maine 

 for the writer has found no tendency to pairing and no tendency 

 to lay eggs in weevils reared from the berries and confined in 

 the laboratory. On the other hand, the writer occasionally 

 has found larvae even in August as shown in the table printed 

 below. 



1914. 





1st 



2nd 



3rd 



4th 







instar. 



instar. 



instar. 



instar. 



Pupae 



August 10 





I 







I 



14 



I 



I 



I 





3 



15 







I 







17 





I 







I 



21 









I 



I 



The writer is inclined to believe that these individuals hatched 

 from eggs deposited much later in the season than is usual bv 

 the overwintering weevils of the preceding summer. It is 



