20 LIFE STORIES OF AUSTRALIAN INSECTS. 



trol and this further increases their resemblance to 

 leaves or sticks, for they remain in the one posi- 

 tion for an hour or more. 



The mouth parts are developed for biting and 

 chewing and the palpi are very prominent. (Plate 

 r, Fig. 2.) 



The Metamorphosis is incomplete, the newly- 

 hatched larvae being similar to their parents, but 

 are wingless and are not fully developed. (Plate 

 7, Fig. I.) 



The insects named all possess these general 

 characteristics but differ from one another in cer- 

 tain parts; hence it is necessary to put each into 

 a family of its own, which we shall study separ- 

 ately. The Orthoptera comprises insects which are 

 foes and not friends of man, the one exception being 

 the mantid family. 



