206 



AN INTRODUCriON TO ZOOLOGY. 



cessiunea) the caterpillars marcli in order, first some 

 ia single file, then double, then in threes, fours, 

 fives, and so on, and proceed till the leaders set to 



Pig. 61.~Humming-bird Ha^k-moth (Macroglossa st^Uaiarunl), sacking 

 honey from tlie Trumpet Honeysuckle. 



work to build a nest, in which they all join, produc- 

 ing one which is nearly two feet long and several 

 inches in diameter. 



The Goleoptera, or Beetles, have biting mouths, and 

 the front wings converted into horny coverings (wing- 

 cases) for the transparent under wings. They also go 

 through a complete metamorphosis. The Ladybirds 

 {OoccineUidce) are among the most useful of English 

 insects, for their larvaa eat aphides. The fate of the 



