

THE EEPOKT OF THE 



No. 36 



brownish-yellow transverse line runs across them. Last segment tapering, sub- 

 conical, on each side witli a very narrow yellow longitudinal line, from the base 

 to near the tip; the extreme tip yellowish. 



Habits. Within the severed bud the larva at first feeds on the pollen. Pollen, 

 however, is not absolutely necessar}' for its sustenance, as is shown by the fact that 

 we reared a few adults from buds of Sample, a pistillate variety. The grub feeds 

 on the other interior parts of the bud and eventually bores its way into the re- 

 ceptacle, forming here an enclosed cell, the entrance to which is plugged Avith 

 closely packed excreta. 



Effect on Lakva of DrtYixG Out of Bud. In cases where the buds persist 

 on the plants or dry out on the soil, the majority of tlie larva die. Last season 

 only 11 adults were reared from 180 dried out buds. 



Duration of Lauval Stage. The average duratidu of the larval stage of 

 !)6 grubs was 13 days, the maxinuim and minimum ]»ri-io(ls l)eing respectively IG 

 and 11 days. 



Work of Strawberry Weevil. Note the severed buds and punctured petals. 



The Pupa, 



Pupation takes i)lace within the bud. The pu])a is creamy white, sometimes 

 mottled with black. All the appendages of the adult are apparent. 



Duration of Pupal Stage. In experiments with 90 pupae the maximum, 

 minimum and average periods of pupation were respectively, 18 days. days and 

 10 days. 



Further Notes on the Adults. 



Emergence From Buds. According to observations made during the past 

 two years the adults commence to emerge from the buds al)out June 20th, and 

 continue to emerge throughout the greater part of July. 



Habits and Food Plants. In the insectary the newly emerged adults fed 

 very freel}' upon the leaves of strawberries. On .-onu' of the plants practically all 

 the foliage was devoured — little more than the bare ribs being left, in tlic straw- 

 berry lields, however, very few beetles were found attacking the foliage, and no 



