Fig. 50. a, Aphrophora quadrinotata; b, Lepyronia quadrangularis ; 

 c, Aphrophora parallela ; d A. parallela. Nymphal molt from last 

 instar; Clastoptera obtusa Say; c, male; f, female; Clastoptcra proteus 

 Fitch, g, female; h, i, two varieties of male. (Original.) 



