INSECTS COLEOPTERA DIAGRAM 6. 



119 



The means of getting rid of it was consequently discovered, 

 which is to move the corn either with the shovel, or by 

 arranging it in the granary in such a manner that whenever a 

 sack is taken away, all the corn in the granary must be 

 moved. 



The Bostrichi have ovoid, elongated 

 bodies ; their antennae are short, 

 and terminate in a club. They 

 are very small beetles, the larvse 

 of which are extremely destruc- 

 tive to trees. They establish Bostriclius, magnified, 

 themselves between the wood and the bark, and q& 



Or 



then hollow out tortuous channels, which ' are 

 almost always filled with the sawdust formed by 

 their work. They live thus two years, after which 

 they construct a cocoon formed of sawdust fastened 

 together by filaments of silk. They pass the Larva of Bos . 



winter there in the pupa state, and it is only in trichus natu- 

 ,, . ., f ., . ral size, and 



the following spring that they emerge from their magnified. 



prison in the perfect state. 



The Longicorns are a family of Coleoptera which may be known 



Longicorn. 



Larva of Longicorn. 



by their slender antennae, often recurved like a ram's horns. The 

 larva} of the longicorns also burrow long galleries in wood. In 



