GRUBS OF WEEVILS. 



243 



nut falls to the ground in September or October. 

 The hole found in the nut appears much too small 

 to have admitted of its passage; but from being very 

 soft it no doubt stretches itself out for the purpose, 

 using its short claws as instruments of motion. 



Rosel, in order to observe the transformation of 

 these nut grubs, put a number of them, at the com- 

 mencement of winter, into glasses half filled with 

 earth, covered with green turf All of them dug 

 directly down into the earth, remained there all 

 the winter, and did not change into pupaj till the fol- 

 lowing June; the perfect weevils appeared from the 

 1st till about the 20th of August, but still kept under 

 ground for the first week after their change. 



Nut and apple-tree beetles. A, a branch of the filbert-tree 

 o, egg hole in the nut ; /j, exit hole of the grub. B, the larv« of 

 the nut beetle. C, the same in t!ie pupa btaie. D, female beetle. 

 E, male beetle, c, the beetle that destroys the bloom-bud of the 

 apple tree; a, the same in the larva state; &, the chrysalis of 

 the same. 



' During the autumn,' says Salisbury, ^ we fre- 

 quently observe a small red weevil busily employed 

 in traversing the branches of apple-trees, on which 

 it lays its eggs by perforating the bloom buds. In 

 the spring, these hatch, and the grubs feed on the 



