APPENDIX. 143 



ticularly the Green Chisel Pear; this insect 

 1 have not known many years, neither can 

 I at present give any account of its origin. 

 The insects appear to lay their eggs in the 

 cracks and cavities of the bark, where they* 

 hatch, and while in quite a young state, they 

 are a small slender maggot of a whitish yellow 

 colour ; as they grow they eat into the body of 

 the tree, and when they get to their full size, 

 I have seen them full two inches and a half 

 long, and proportionably stout, of a red colour 

 and shining black head, out of which it sends 

 two small claws like a pair of nippers, which 

 they make use of to eat into the tree. I have 

 seen large trees, at least three feet in circum- 

 ference in the stem, completely killed by them : 

 T last winter took out one of them of the 

 largest size, from a Green Chisel Pear tree, 

 belonging to Mr. Street, of Old Brompton; 

 this was taken from a large limb, where the 

 insect had scooped out all the centre near the 

 stem, which caused the wind to blow it off, 

 and in the hollow, where it had been living, 

 was at least two quarts of saw-dust, which the 

 insect had buried itself in. 



Should this insect become numerous, and an 

 effectual remedy not be discovered, the devas- 

 tation which it may be expected to make, will 



