INSECTS. 7 



most of the Beetle tribe it is furnished with short 

 legs, capable of some degree of motion, though 

 verv rarely exerted. In the Butterfly tribe it is 

 perfectly destitute of all appearance of legs, and 

 has no other motion than a mere lateral bending 

 or writhing when touched. In the Locust tribe it 

 differs but very little from the perfect Insect, ex- 

 cept in not having the wings complete. In most 

 of the Fly tribe it is perfectly oval, without any 

 apparent motion, or distinction of parts. The 

 Pupae of the Bee tribe, and other Insects of a 

 similar cast are less shapeless than those of Flies, 

 exhibiting the faint or imperfect appearance of 

 the limbs. Those of the Libellulre or Dragon- 

 Flies are locomotive, as in the Locust tribe; but 

 differ most widely from the appearance of the 

 complete Insect, and may be numbered among 

 the most singular 'in the whole class of Insects. 

 I should here observe that the Linnaean term 

 Pupa, which most modern entomologists substi- 

 tute for that of Chrysalis, was given from the 

 indistinct resemblance which many insects bear 

 in this state to a doll, or a child when swathed up 

 according to the old fashion. 



From the Pupa or Chrysalis emerges at length 

 the Insect in its complete or ultimate form, from 

 which it can never change, nor can it receive any 

 further increase of growth. This last or perfect 

 state of an Insect is, in the Linnaean language, 

 termed Imago. 



O 



This surprizing alteration of shape during the 

 different periods of an Insect's life, is to be con,- 



