184 The Ohio Journal of Science [Vol. XVI, No. 5, 



Synopsis of Tribes. 



Anterior edge of the head thin and sharp, or more or less foliaceous. . . .Dorydini 

 Anterior edge of the head sometimes acute, but generally obtuse or rounded, 



never thin and foliaceous A. 



A. Elytra with two transverse nervures between the first and second sectors 



of the corium Deltocephalini 



Elytra with but one transverse ncrvure between the first and second 



sectors of the corium B. 



B. Elytra without a series of anteapical areoles or with but one, formed 

 by the forking of the outer branch of the first sector; vertex sub- 

 quadrate, the hind and lateral margins elevated, before feebly 

 arcuated, with the edge strongly rounded or produced and tumid 



before with an obtuse apex Jassini 



Elytra with a series of (generally three), apical areoles C. 



C. Outer branch of the first sector of the elytra with two forks 



evident Athysanini 



Outer branch of the first sector of the elytra with its outer fork 

 obsolete or nearly so, anterior edge of the head well rounded,. 

 vertex but little, if at all longer on the middle than next the 

 eye Cicadulini 



Tribe Dorydini. 



Genus Cephalelus Perch. 



Cephalelus— Percheron in Guer. Mag. Zool. ii, Classe IX, (1832). 

 Dorydium— Burm. Handb. Ent. ii, 1, 106, (1839). 



Burm. Gen. Quaedam. Ins^'ct i, (1838). 

 Cephalelus— Signoret, Ent. vSoc. Fr. 504, 259, (1879). 



Kirby, Trans. Ent. Soc. Lond, 412, (1894). 



Head long, narrow, very strongly produced; vertex long, 

 pointed, the sides rounded, more than three times as long as 

 the width, face large, merging into the vertex; clypeus heart- 

 shaped. Eyes lateral, elliptical. No ocelli. Antennae short, 

 the basal joint large and cylindrical, the second long, the third 

 subcylindric. Pronotum transverse, the lateral margins of 

 moderate length. Elytra corneous, punctulate, the apices 

 rounded. Tibiae without spines. Abdomen elongate, the males 

 much shorter than the females. 



Cephalelus infumatus Perch. (PI. VI, Fig. 1). 



Cephalelus injiimalus Perch, in Guer, Mag. Zool. ii. Classe IX. pi. 48. (1832). 

 Dorydium paradoxum Burm. Handb. Ent. ii. 106. (1839). 

 Cephalelus infumatus Walk. Cat. Hom. Brit. Mus. 637. (1851). 

 Cephalelus infumatus Amy. & Serv. Essai sur les Jassides. 258. (1878). 

 Distant Ins. Transv. X. 241. (1910). 



General color dark red to brown or yellowish brown in dried spec- 

 imens. Length of females 11.75 mm. to 12.75 mm. Average length of 

 twelve females 11.95 mm. Length of males 9.25 to 10.25. Average 

 length of thirteen males 9.35 mm. Breadth 1.5 mm. 



Female — Head dull red to brown above, with an indistinct line along 

 the middle of the vertex, extending from the anterior margin, to a little 

 before the eyes; beneath dark red with a broad yellowish band running 

 along the middle, rather narrow at the anterior, but widening towards 

 the posterior margin. Vertex about four times as long as its breadth; 



