The American species of Aphrophora were first reviewed by Ball (Proc. Ia. Acad. Sci., VI, pp. 209-217, 1898) in his paper entitled “A Review of the Cercopidae of North America North of Mexico” in which eight species are treated, three of them therein describecl as new. Stern's paper (Conn. St. Geol. Nat. Hist. Surv. Bul. 34, pt. IV, 211, 1923) deals with the same species discussed by Ball with especial reference to their occurrence in Connecticut.