CICADELLINAE: PART 2. NEW WORLD CICADELLINI 595 
claval suture near base, base of vein R to fork, and middle one-third of costal 
area, yellow (lateral pronotal margins and base of vein R black in some speci- 
mens, yellow in type), face and thoracic pleura black, with yellow arcs on 
each side of face, with other yellow markings on face and propluera less 
conspicuous and inconstant, legs brownish yellow. Color of female dull brown 
dorsally, with slightly paler areas inconstant but with following areas constant 
and more contrasting: a few spots near anterior margin of pronotum, 
posterior portion of scutellum, and in the forewing the basal portion of vein R 
as far as fork; yellow areas near anterior pronotal margin interspersed with 
black markings; face with clypeus yellow with brown arcs on each side, 
remainder of venter, thoracic pleura, and the legs, dull yellow, with darker 
markings not constant. 
Holotype and one additional male, ‘‘Rio Caraguata”’, Mato Grosso, Brazil, 
March, 1953 (F. Plaumann) (NCS). A long series of specimens of both sexes, 
“Guajara” Mirim, Brazil [labeled Bolivia], February 13, 1943, in DeLong 
collection (OSU). Holotype on indefinite loan to USNM. 
C. yana, n. sp., can be separated from other species in the genus most 
readily by the distinctive lobe of the aedeagus on the dorsal margin in lateral 
view. 
80. GENUS PLESIOMMATA PROVANCHER 
FicurES 487-492 
Plestommata Provancher, 1889a:263. Type-species: Plesiommata biundulata Provancher, 
which is a junior synonym of Tettigonia tripunctata Fitch, by monotypy. 
Provancherana Hamilton, 1976a:36. Type-species: Tettigonia tripunctata Fitch, by original 
designation. 
Length of male 3.6-5.0 mm, of female 4.0-5.6 mm. 
Head moderately to well produced, median length of crown from one-half 
to almost eight-tenths interocular width and from slightly less than three- 
tenths to slightly less than one-half transocular width, anterior margin varying 
interspecifically from broadly to acutely rounded in dorsal view, ocelli on or 
before a line between anterior eye angles (specifically variable), each closer to 
adjacent anterior eye angle than to median line of crown, crown without 
sculpturing or setae; antennal ledges in lateral view with anterior margins rec- 
tilinear or nearly so and from vertical to very slightly oblique; clypeus usually 
convex (slightly flattened medially in Plestommata tripunctata (Fitch)), finely 
granulate medially, muscle impressions usually distinct (exception: P. alcorni 
Beamer), transclypeal suture entire or narrowly interrupted medially, cly- 
pellus extending beyond apices of genae. Other head characters as in Ciminius 
Metcalf and Bruner. 
Thorax with pronotal width less than transocular width of head, lateral 
margins slightly convergent anteriorly, dorsopleural carinae incomplete, 
posterior margin concave, disk with or without transverse striae (variable 
intraspecifically), not pubescent; scutellum not striate behind transverse 
sulcus. Forewing hyaline to pale translucent, with at least the longitudinal 
veins dark, with inner two of three anteapical cells open basally, with four 
