PROTECTIVE RESEMBLANCE, WITH EXAMPLES 



Leavex of Bed Oak. The upper figure shuiiw a young U'alk- 



iiig-xfic/i protected by its resemblance to reins of the leaf; 



lower figure a young Round-wing Katydid irhich is 



green in life, like the vathinfi-stick. and almost 



invisible against the leaf bar/.r/ronnd. 



