36 



ZOOLOGY 



twigs of the plant on which thej' feed, and the resemblance is 

 heightened bj- the way they have of stiffening and standing 

 out like a branch from the stem. A common genus of moths 



Fig. 3S.--A, Kallinia, the leaf-butterfly of the East Indies, flying; a, at rest. 

 B, Sideroiie, another lcaf-)juttcrfly, flyinK ; b, at rest. 



(Catoca'la, Fig. 37) which fly hy night and have showy hind 

 -nings, rest ]n' day on trees, sho\ring only their fore wings, 

 which so closely resemble the bark as to 1)e almost indistin- 

 guishaljle from it. Still more striking is the resemblance which 



