CICADELLINAE: PART 2. NEW WORLD CICADELLINI 819 
115. ISOGONALIA, NEw GENus 
FicurEs 661-665 
Type-species: Tettigonia sexlineata Signoret. 
Length of male 4.4-4.7 mm, of female 5.0-5.5 mm. 
Head moderately produced with anterior margin narrowly to broadly 
rounded in dorsal view, median length of crown varying from six-tenths to 
more than eight-tenths interocular width and from four-tenths to almost six- 
tenths transocular width, without a carina at transition from crown to face, 
ocelli located on or behind a line between anterior eye angles, variable in rela- 
tion to relative distance from adjacent anterior eye angle and to median line, 
crown convex and with or without a transverse concavity, without a median 

g r 
FIGURE 661.—Jsogonalia sexlineata (Signoret) (see also fig. 662); (p, r, from Bo- 
queta, Panama Canal Zone; q, s, from Nogales, Vera Cruz, Mexico; ¢ from 
San Pedro de Montes de Oca, Costa Rica; remainder from El Salvador): p, 
g, Aedeagus from lateral view; 7-t, same from caudoventral view. 
b 
