CICADELLINAE: PART 2. NEW WORLD CICADELLINI 825 
Ground color of crown, anterior portion of pronotum, and scutellum, 
greenish-yellow; crown with a narrow inverted anchor-shaped marking out- 
lined in black, a black spot at apex and variable black markings next to each 
eye; pronotum with irregular spots and vermiculations near anterior margin; 
scutellum with a few black markings before transverse sulcus; remainder of 
pronotum and forewings dark green with a narrow blue stripe in brachial cell 
bordering claval suture; face yellow with a few black dots; proepimeron 
yellowish-green with a black spot below dorsopleural carina; remaining 
pleural region yellowish in female, yellowish with black markings in male; 
legs yellow. 
Holotype male, and one female, Jacala, Mexico, August 28, 1936 (E. D. 
Ball) ‘323k”,; one male, same data as preceding except August 17, 1936, 
e233 (USNM). 
I. labyrinthica, n. sp., is the only species in the genus with apical aedeagal 
processes. 
116. AMPHIGONALIA, NEw GENus 
FicurEs 666-670 
Type-species: Tettigonia gothica Signoret. 
Length 4.0-5.9 mm. 
Head moderately to strongly produced, with anterior margin broadly 
rounded in dorsal view, median length of crown varying from slightly less 
than two-thirds to approximately eight-tenths interocular width, and from 
four-tenths to approximately one-half transocular width, without carina at 
transition from crown to face, ocelli located on or behind a line between an- 
terior eye angles, each ocellus equidistant from median line of crown and ad- 
jacent anterior eye angle or slightly closer to latter, crown usually convex and 
usually without a distinct concavity across ocelli, without a median fovea, 
with numerous irregularly arranged lenticular impressions, setae absent, 
lateral clypeal sutures extending onto crown and attaining ocelli; antennal 
ledges not protuberant, in lateral view with anterior margins vertical or ob- 
lique and either rectilinear or slightly convex; face without a vertical lenticular 
sclerite bordering lateral clypeal suture on each side below eye, clypeus very 
slightly convex medially, median clypeal area granulate, muscle impressions 
usually distinct, transclypeal suture entire or not, clypellus not produced but 
with its contour continuing profile of clypeus. 
Thorax with pronotal width approximately equal to transocular width of 
head, lateral margins parallel or slightly convergent anteriorly, dorsopleural 
carinae complete, posterior margin concave, disk of pronotum transversely 
rugulose or not, not pubescent; scutellum not transversely striate behind 
transverse sulcus. Forewing with only inner apical cell membranous, veins not 
elevated, distinct or not, with three closed anteapical cells of which the bases 
are proximal to a transverse line across the claval apex, with or without 
supernumerary crossveins in anteapical cells, in some specimens forming a 
network of veins; forewings of female in rest position exceeding apex of 
ovipositor. Hindleg with femoral setal formula 2:1:1 or (rarely) 2:1:0; length 
