- 156 ] Cercopidae 515 



Ball, Eept. la. Acad. Sci. for 1898, p. 224. 

 Smith, Cat. Ins. N. J., edn. 3, p. 99, 1910. 

 Van Duzee, Bui. Buf. Soc. Nat. Sci., x, p. 508, 1912. 

 Van Duzee, Can. Ent., xliv, p. 327, 1912. 



Lallemand, Genera Ins., fasc. 143, p. 35, 1912, Ptyelus (as species). 

 Metcalfe, Jl. Elisha Mitchell Sci. Soc., xxxi, p. 16, 1915. 

 ^Ufasciatus (Fabricius), Syst. Rhyng., p. 98, 1803, Cercopis. (Not of Lin- 



[naeus; see Stal, Hemip. Fabr., ii, p. 16.) 

 Germar, Mag. d. Ent., iv, p. 51, 1821, Aphrophora. 

 Burmeister, Handb. d. Ent., ii, p. 122, 1835, Aphrophora. 

 Blanchard, Hist, des Ins., Hemip., p. 189, 1840, Aphrophora. 

 Walker, List Homop., iii, p. 719, 1851, Ptyelus. 



b. var. ustulatus (Fall.) 



Fallen, Hemip. Suec., Cicad., p. 19, 1826, Cercopis. 



Sahlberg, Cicad;', p. 91, 1871. 



Melichar, Cicad. Mitt. Eur., p. 122, 1896. 



Edwards, Hemip. Homop. Brit. Isds., p. 80, pi. 9, fig. 4, 1896. 



Ball, Kept. la. Acad. Sci. for 1898, p. 225. 



c. var. lateralis (Linn.) 



Linnaeus, Syst. Nat., edn. 10, i, p. 437, 1758, Cicada. 

 Linnaeus, Fauna Suec., p. 241, sp. 886, 1761, Cicada. 

 Linnaeus, Syst. Nat., edn. 12, i, p. 709, 1767, Cicada. 

 Fabricius, Ent. Syst., iv, p. 35, 1794, Cicada. 

 Fabricius, Syst. Rhyng., p. 96, 1803, Cercopis. 

 Fallen, Hemip. Suec., Cicad., p. 18, 1826, Cercopis. 

 Zetterstedt, Fauna Lapp., p. 515, 1828, Cercopis. 

 Flor, Rhyn. Livl., ii, p. 128, 1861, Ptyelus. 

 Sahlberg, Cicad., p. 90, 1871. 



Edwards, Trans. Ent. Soc. Lond. for 1886, p. 99. 

 Edwards, Hemip. Homop. Brit. Isds., p. 80, 1896. 

 Melichar, Cicad. Mitt. Eur., p. 123, 1896. 

 Ball, Rept. la. Acad. Sci. for 1898, p. 225. 



d. var. leucocephalus (Linn.) 



Linnaeus, Syst. Nat., edn. 10, i, p. 437, 1758, Cicada. 



Linnaeus, Fauna Suec., p. 241, sp. 885, 1761, Cicada. 



Linnaeus, Syst. Nat., edn. 12, i, p. 709, 1767, Cicada. 



Fabricius, Mant. Ins., ii, p. 210, 1787, Cicada. 



Gmelin in Linnaeus, Syst. Nat., edn. 13, i, pt. 4, p. 2106, 1788, Cicada. 



Fabricius, Ent. Syst., iv, p. 52, 1794, Cercopis. 



Fabricius, Syst. Rhyng., p. 95, 1803, Cercopis. 



Germar, Mag. d. Ent., iv, p. 53, 1821, Aphrophora. 



Fallen, Hemip. Suec., Cicad., p. 18, 1826, Cercopis. 



Zetterstedt, Fauna Lapp., p. 515, 1828, Cercopis. 



Flor, Rhyn. Livl., ii, p. 128, 1861, Ptyelus. 



Sahlberg, Cicad., p. 90, 1871. 



Edwards, Trans. Ent. Soc. Lond. for 1886, p. 99. 



Edwards, Hemip. Homop. Brit. Isds., p. 80, 1896. 



Melichar, Cicad. Mitt. Eur., p. 123, 1896. 



Ball, Rept. la. Acad. Sci. for 1898, p. 225. 



Van Duzee, Can. Ent., xliv, p. 327, 1912. 



albiceps Provancher, Nat. Can., iv, p. 351, 1872, Ptyelus. 

 Provancher, Pet. Faune Ent. Can., iii, p. 258, 1889. 



