3 o PLATE XII. 



the fand perpendicularly, and refts near the furface to enfnare fmaller 

 infects. 



It is very difficult, if at all poffible, to breed thofe infects and ob-<- 

 ferve their metamorphofes ; we have tried various methods, but have 

 not yet been fo fortunate as to fucceed. 



