THE HEAD AND THORAX. 341 



abdomen ; we seldom, in fact, find more than seven 

 or eight, the remaining two or one being generally 

 hidden. It is interesting, however, to trace in the 

 perfect insect these indications of its previous 

 larval condition, especially when we remember the 

 strange appearance it underwent while a pupa. 



Now the various parts in the head division 

 are, to speak generally, the head proper, the 

 mouth s the eyes, and the antenna?. Entomologists 

 describe a large number of other parts, which 

 would also be mentioned here if this little 

 treatise were intended to give a minute account 

 of the insect's anatomy ; and those features which 

 are of most prominence and importance, will be 

 mentioned in addition when we come to speak 

 particularly of these several chief organs. 



The middle portion of the insect, or thorax, is 

 divided into three parts a front, middle, and 

 hinder part; or, in the language of entomology, 

 a pro-thorax, a meso-thorax, and a meta-thorax. 

 Attached to the thorax are the wings and the legs. 

 The remaining portion, or abdomen, is furnished 

 with organs and appendages, not requiring special 

 mention in this place. 



Let us consider briefly the organs which are 



