8o TRUE TALES OF THE INSECTS. 



(Thespis, etc.) the body is even as slender and cylin- 

 drical as among Phasmidae. Yet there is no real affinity 

 between them, essential differences distinguish these 

 groups ; differences relating to the modifications of nearly 

 every part of the body, in connection with habits diametri- 

 cally opposed. Still, one can hardly but say there is a 

 sort of parallelism between them ; the two families con- 

 stituting, so to speak, two collateral series, the one 

 representing the herbivorous, the other the carnivorous 

 type of the same form. 



