OTHER PEDESTRIANS 169 



most remarkable resemblance to the leaves of the 

 trees on which they live. Unlike our species, 

 these southern ones have wings. They look just 

 like animated twigs, with leaves attached. The 

 wings are not only leaf-like in form and color, 

 but, stranger still, the principal "vein" in each 

 wing appears like the midrib of a leaf. Some of 

 these most uncanny "leaf-insects" are green, while 

 others are dull brown, imitating a dead leaf, even 

 to the irregular, curled edges. We would have 

 found the story hard to believe if we had not had 

 our own walking-stick to bear witness to the effec- 

 tiveness of its protective form and coloring. 



