100 



BEETLES. 



proportion, and raised in the middle so as to form a 

 kind of hump ; the male is only about two-thirds the 

 length of the female, and wider in proportion, and 



E.O 



Fig. 80. — Xylehonis dispar : Male and female Beetle, magnified ; 

 lines showing nat. length. Plum stems, showing horizontal and per- 

 pendicular galleries. 



flatter. Multiplication takes place in the tunnels bored 

 by the parent Beetles, and in September the boringa 

 may be found so crowded with Beetles that there is 

 not room for another specimen. 



This is an example of the class of attacks in which 

 the wisest course is to cut down the attacked tree and 

 burn it as soon as the presence of the infestation is 

 observed. It is no waste, for where the tree is to a 

 great extent ringed and the pith cleared, its death 



