The Glow-Worm and Other Bcctlci 



tree. Its larva lives between the wood and 

 the bark. I undergo its transformation, 

 it goes down instead of coming up. In the 

 I, parallel with the surface of the 

 hunk, under a layer of wood barely a twenty- 

 Id th of an inch in thickness, it makes a cylin- 

 drkftl cell, rounded at the ends and roughly 

 padded with ligneous fibres. A solid plug 

 of shavings barricades the entrance, which 

 is not preceded by any vestibule. Here the 

 work of deliverance is the simplest. 7'he 



Saprrda has only to dent the door of his 



chamber to find beneath his mandibles the 

 little bit of bark that remains to be pierced. 

 As you see, we once more have to do with 

 two specialists, each working in his own man- 

 Ml wiili the same tools. 



I lie Buprestes, as zealous as the Longi- 

 corns in the destruction of trees, whether 

 lOUfld <•) ailing, tell us the same tale as the 

 ( 'rr.imhvv and Saperda -beetles. The Bronze 



Bupreitis (B. anca) is an inmate of the black 

 poplar. Her larva gnaws the interior of 



the Irimk. lor (he nymphosis il installs it- 

 ••< II near the surface in a flattened, oval cell, 

 which is prolonged at the back by the wan- 

 dering-gallery, firmly packed with wormed 



wood, and in Ironl h\ a short, slightly curved 



vestibule. A layer of wood not a twenty-fifth 

 ata 



