262 Insect Architecture. 



up to the present time no remedy has had more than a 

 temporary and partial success.] 



Another Capricorn beetle of this family is no less destructive 

 to bark in its perfect state than the above are when grubs, 

 as from its habit of eating round a tree, it cuts the course of 

 the returning sap, and destroys it. 



[The late Mr. Waterton once showed me a stout branch 

 which had fallen on his head while he was standing under a 

 tree, the branch having been cut completely through by the 

 jaws of some large longicorn beetle. The mode in which the 

 insect had severed the branch was exactly like that which is 

 practised by the beaver when it cuts down a tree. 



Capricorn Beetle (Cerambyx Lamia amputator) rounding off the bark of a tree. 



[The burrows and cocoons of two other species of Cerambyx 

 are shown in the accompanying illustration, and in both 

 cases may be seen the provision which is made for the exit 

 of the beetle after it has attained the perfect condition. The 

 double burrow of the left is that of Cerambyx carcharias, and 

 those on the right- hand figure aro the habitations of Cerambyx 

 populneus. The reader will see how these insects cut up the 

 wood of the branch, and can well understand the infinite 

 mischief which can be done to a coffee plantation by the 

 Clytus. 



The last wood-boring beetle which will be mentioned is 



