332 Darwin, and after Darwin. 
those belonging to a different order of insect, when 
the latter is engaged in its peculiar avocation. A 
glance at the figure is enough to show the means 
employed and the result attained. In A, an ant and 
its mimic are represented as about 23 times their 
natural size, and both proceeding in the same direction. 
It ought to be mentioned, however, that in reality 
the margin of the leaf is seldom allowed to retain its 
natural serrations as here depicted: the ants usually 
gnaw the edge of the real leaf, so that the margin of 
the false one bears an even closer resemblance to it 
than the illustration represents. B is a drawing from 
life of a group of five ants carrying leaves, and their 
mimic walking beside them}, 
1 Both drawings are reproduced from Mr, Poulton’s paper upon the 
subject (Proc. Zool. Soc., June 16, 1891). 
