20 Insect Architecture. 



preparing for its final change, when it takes the form of a 

 perfect insect. This state was called by Linnaeus Imago, 

 because the insect, having thrown off its mask, becomes a 

 perfect image of its species. Of some, this last portion of 

 their existence is very short, others live through a year, and 

 some exist for longer periods. They feed lightly, and never 

 increase in size. The chief object of all is to perpetuate 

 their species, after which the greater number quickly die. 

 It is in this state that they exercise those remarkable instincts 

 for the preservation of their race, which are exhibited in their 

 preparations for the shelter of their eggs, and the nourish- 

 ment of their larvae. 



