MIMICRY IN BUTTERFLIES 



At the left a series of stinking or unpalatable forms, the * ' models ' ' ; 

 with a series of imitators or "mimics" at the right. From a prepa- 

 ration by Kny-Scheerer Company. 



MIMICRY OF LEAF-CUTTING ANT BY A TREE-HOPPER 



From Romanes, ' ' Darwin and after Darwin. ' ' 

 By permission of the Open Court Publishing Company. 



341 



