PART I. 



LESSONS IN INSECT LIFE. 



CHAPTER I. 



THE PARTS OF AN INSECT. 



'OOK at an insect and you will find a creature 



with parts which are very different from 



those of the animals with which we are more 



familiar. x\lthough it can see, hear, eat, 



and walk, its eyes, ears, mouth, and legs 



are not like the corresponding organs of 



the higher animals. 



It is necessary, therefore, at the 

 beginning of our study of insect life, 

 to learn something of the structure of insects. We 

 will not attempt at first, however, to make a thor- 

 ough study of insect anatomy, but will merely select 

 one kind of insect, and study the principal divisions 

 of the body as seen from the outside. 



Having done this, we will be able to see in our 

 later studies in what ways the parts of other kinds of 

 insects have been modified in form to fit them for 

 their modes of life. Thus, for example, we will find 

 that an insect which catches its prey by running has 

 legs of a different shape than those of an insect that 



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