The Tree-Hoppers 



until they are hatched and the young from the time of hatching 

 until full grown are constantly attended by ants which are at- 

 tracted to the sweet secretion which this insect, together with 

 many others of the same family, just as with certain of the Jas- 

 sidae, exudes from its anus. 



Life History of the Buffalo Tree-Hopper 



(Ceresa bubalus.) 



This little insect is probably 

 the species of the greatest eco- 

 nomic importance of any of this 

 group of tree-hoppers. It is 

 popularly known by the name 

 of the "buffalo tree-hopper." Its 

 popular name is derived from its 

 supposed similarity in shape to 

 the male bison, the prothorax 

 being greatly enlarged towards 

 the head and projecting at the 

 sides into two strong horns. It 



[33. — Archasia galeata. 

 (After Lugger") 



Fig. 134. — Ceresa bubalus. (After Marlatt.) 

 239 



