LAWSON: KANSAS CICADELLID^. 83 



Oncometopia lateralis (Fabr.). 



(PI. 8, figs. 1-2.) 

 Cercopis lateuilit Fabr.. Ent. Syst., Suppl., p. 524, 1798. 

 C'ercopiD marginella Fabr., Syst. Rhyng., p. 96^ 1803. 



Cercopis costalis Fabr., Syst. Rhyng., errata, 1803 (n. n. for marpiuella Fabr ). 

 Tetfiffonia striata Walk., Li.st Honiop., iii, p. 775, 1851. 

 . Tettiyonia Ivgens Walk., List Homop., iii, p. 775, 1851. 

 Tettigonia pyrrhotelus Walk., List Homop., iii, p. 775, 1851. 

 Proconia costalis Walk., List Homop., Suppl., p. 224, 1858. 

 Proconia costalis Stal, Homop. Fabr., ii, p. 118, 1869. 

 Proconia costalis Van D., Can. Ent., .\xi, p. 9, 1889. 

 Proconia costalis Osb., Proc, la. Acad. Sci., i, pt. 2, p. 125, 1892. 

 Oncometopia costalis Sloss., Ent. News, v, p. 5, 1894. 

 Oncometopia costalis G. & B., Hemip. Colo., p. 81, 1895. 

 Oncometopia lateralis Ball., Proc. la. Acad. Sci., viii, p. 44, 1901. 

 Oncometopia lateralis Osb., 20th Rept. N. Y. St. Ent., p. 509, 1905. 

 Oncometopia lateralis Osb., Me. Agr. Exp. Sta., Bui. 238, p. 99, 1915. 

 Oncometojna lateralis DeL., Tenn. St. Bd. Ent., Bui. 17, p. 18, 1916. 

 Oncometopia lateralis Van D., Cat. Hemip., N. A., p. 592, 1917. 

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

 Oncometopia lateralis Lathr., S. C. Agr. Exp. Sta., Bui. 199, p. 29, 1919. 



Form: Shorter than preceding species, but quite broad. Length, 7 to 

 8 mm. Head, about half as long as wide, vertex obtusely angled, eyes 

 prominent. Pronotum short, anterior and posterior margins about par- 

 allel. Elytra broad and only slightly exceeding abdomen. 



Color: Vertex, pronotum and scutellum black, irrorate with yellow. 

 Elytra red to slaty blue, nervures black, frequently with light or yellow 

 margins. Face black irrorate with yellow. Narrow yellow lateral stripe 

 starts from eye, crosses thorax, and extends along margin of abdomen 

 to pygofers. 



External genitalia: Female, last ventral segment about twice as long 

 as preceding, lateral margins narrowed posteriorly, posterior margin with 

 broad incision on median third which reaches at out one-fourth of way to 

 base ; pygofers large, widest at middle, exceeding ovipositor. Male, plates 

 together forming a triangle longer than wide; pygofers long and nar- 

 x'ow, exceeding plates, covered with fine hairs as are the plates. 



Internal male genitalia: Styles much as in undata, proportionally 

 broader, outer m.argin nearly straight, inner m.argin with broad lobe half 

 way between apex and process for attachment to oedagus, apex with 

 slight inwardly directed point, lateral margins of apical third serrate, a 

 few slender hairs near lateral margin about one-third the distance from 

 the tip; connective consisting of a broad strap-like piece between the 

 styles with the ventral surface bearing a large square portion medially; 

 oedagus large, produced anteriorly to meet connective, with a large dorsal 

 process running first caudad and then cephalad, and two pairs of long 

 slender terminal lobes running dorsad, the first pair broader and longer 

 than the posterior pair. 



Distribution: This species occurs throughout the state as 

 shown by the following map. 



