Chap. XII.] 



LEAF-INSECTS. 



409 



the full - blown 

 leaf, and the 

 withered tint of 

 decay. So per- 

 fect is the imita- 

 tion of a leaf in 

 structure and ar- 

 ticulation^, that 

 this amazing in- 

 sect when at rest 

 is almost un- 

 distinguishable 

 from the foliage 

 around: not only- 

 are the wings 

 modelled to re- 

 semble ribbed 

 and fibrous fol- 

 licles, but every 

 joint of the legs 

 is expanded into 

 a broad plait like 

 a half-opened 

 leaflet. 



STICK INSECT AND MANTIS 



