HISTORY OF INSECTS. 61 



ease and agility, but, excepting in its migrations, 

 does not readily fly. 



193. The jaws of the locust are excessively 

 hard and strong, capable of devouring not only 

 the leaves, but, when these fail, the bark and 

 even the solid wood of trees. The sound of 

 their feeding, when in swarms, is as the rushing 

 of flames driven by the wind. 



194. Happily in this country the locust is 

 very rare ; it has occasionally been driven here by 

 winds, but has never been known to breed here. 

 In the year 1748, a considerable number were 

 observed, but not enough to do any serious 

 injury. 



