236 INSECT ARCHITECTURE. 



monthly rose to any of our native species, and there are 

 few trees of this where they may not be discovered.* 

 Tunnels, very analogous to the preceding, may be 

 found upon the common bramble (Rubus frulicosus) ; 

 and on the holly, early in spring, one which is in form 

 of an irregular whitish blotch. But in the former 

 case, the little miner seems to proceed more regularly, 

 always, when newly hatched, making directly for the 

 circumference, upon or near which also the mother- 

 moth deposits her egg, and winding along for half 

 the extent of the leaf close upon the edge, following, 

 in some cases, the very indentations formed by the 

 terminating nervures. 



Leaf of the Dew-berry Bramble (Rubm atstus), mined by Cater- 

 pillars. 



The bramble-leaf miner seems also to differ from 

 that of the rose-leaf, by eating the pulp both from 

 the upper and under surface, at least the track is 

 equally distinct above and below ; yet Ihis may arise 

 from the different consistence of the leaf pulp, that 

 in the rose being firm, while that of the bramble is 

 soft and puffy. 



On the leaves of the common primrose {Primula 

 veris), as well as on the garden variety of it, the 

 _* See Insect Transformations, p. 70. 



