THE FROG-HOPPEKS. 



53^ 



on the forehead or the face, and the legs are fitted for leapino-. 

 The males do not possess any sound-producing apparatus. 

 They are familiarly known in their perfect state by the 

 popular name of Hoppers, and in their larval state by that of 

 Cuckoo-spit, or Frog-spit. 



The name Cercopis is Grreek, and was used by the ancient 

 writers on natural history to denote some kind of Cicada. 



LXII 



-f- 



1. Ptyelus bifasciatus. 2. Centrotus corantus. 3. Aphis tilled, female. 



4. Aphis tilire, male. a. Aphis, leg. b. Do., labiimi. c. Do., head. 



Our first example of this family is the Eaeed Hopper 

 {Centrotus cornutus\ which is shown at Fig. 2 on Wood- 

 cut Lxir. 



This creature is remarkable, not for the brilliancy of its 

 colouring, nor for the boldness of its marking ; for it is simply 

 dark-brown dotted with a very slight yellowish-dun, and has 

 no markings whatever. 



