LAWSON : KANSAS CICADELLID^. 81 



Genus Oncometopia Stal. 



The members of this genus have a distinct ledge over the 

 antennal socket. The eyes are prominent, making the head 

 wider than the pronotum. Vertex is rounded and obtusely 

 joined to the front. Pronotum is short, four-angular, the an- 

 terior and posterior margins nearly parallel, lateral margins 

 slightly narrowed behind. Elytra long and narrow, not cover- 

 ing abdominal terga. Anterior tibiae are slightly sulcate above. 



Two species and one variety of this genus have been found 

 in the state. 



KEY TO SPECIES. 



A. Size large, 12 mm. or more, cross nervure cephalad of fork of first 

 sector. undata. 



AA. Size smaller, 9 mm. or less, cross nervure caudad of fork of first 

 sector. lateralis. 



Oncometo'pia undata (Fabr.). 



(PI. 7, figs. 1-3.) 



Cicada nndata Fabr., Ent. Syst., iv. p. 32, 1794. 



Cicada orbona Fabr., Ent. Syst., Suppl., p. 530, 1798. 



Tettigonia undata Germ., Mag. d. Ent., iv, p. 61, 1821. 



Proconia xmdaia Walk., List Homop., iii, p. 783, 1851. 



Proconia nigricans Walk., List Homop., iii, p. 783, 1851. 



Proconia clarior Walk., List Homop., iii, p. 784, 1851. 



Proconia Ivcernea Walk., Li.st Homop., iii, p. 785, 1851.. 



Proconia marginata Walk., List Homop., iii, p. 785, 1851. 



Proconia badia Walk., List Homop., iii, p. 786, 1851. 



Proconia sculeUata W^alk., List Homop., iii, p. 786, 1851. 



Proconia tenebrosa Walk., List Homop., iii, p. 787, 1851. 



Proconia plagiata Walk., List Homop., iii, p. 788, 1851. 



Tettigonia undata Sign., Ann. Soc. Ent. Fr., ser. 3, ii, p. 486, pi. 17, fig. 5, 1854. 



Oncometopia undata Stal, Hemip. Fabr., ii, p. 62, 1869. 



Oncometopia undata Wooclw., Bui. III. St. Lab. Nat. Hist., iii, p. 15, pi. 2, figs. 10-14, 

 1887. 



Gypona? badia Van D., Ent. News, v, p. 157, 1894. 



Oncometopia undata Fowl., Biol. Centr. Am., Homop., ii, p. 231, pi. 14. figs. 19, 20, 

 1899. 



Oncometopia undaia Ball, Proc, la. Acad. Sci., viii, p. 41, 1901. 



Oncometopia undata Osb., 20th Kept. N. Y. St. Ent., p. 509, 1905. 



Oncometopia undata DeL., Tenn. St. Bd. Ent., Bui. 17, p. 18, 1916. 



Oncometopia undata Van D., Cat. Hemip. N. A., p. 591, 1917. 



Oncometopia undata 01s., Bui. Am. Mus. Nat. Hist., xxxviii, p. 2, 1918. 



Oncometopia undata Lathr., S. C. Agr. E.xp. Sta., Bui. 199, p. 28, 1919. 



Form: A large, almost parallel-sided form. Length, 13 mm. Head 

 broad, with prominent eyes. Vertex with sides very broadly rounded, 

 very obtuse at apex, about two-thirds as long as basal width. Pro- 

 notum half wider than long, elevated. Elytra long and narrow, claval 

 veins slightly approaching each other and usually with a cross nervure. 



Color: Vertex, anterior m.argin of pronotum and scutellum rusty 

 orange. Vertex with an incomplete black circle from which run out six 

 or eight radiating lines. Scutellum also marked with dark lines. Pro- 



6 — Sci. Bui. — 3058 



