CICADELLINAE: PART 2. NEW WORLD CICADELLINI 491 
much farther than apex of connective, without preapical lobe, gradually 
narrowed to acute apex which is curved at nearly a right angle to axis of 
shank; connective Y-shaped with arms widely divergent; aedeagus arched 
slightly ventrally, apex expanded and with a pair of acute short ventral 
processes; with a pair of short retrorse acute processes near base; paraphyses 
absent. Female unknown. 
Crown and pronotum tan, with poorly defined transverse darker areas on 
basal half and parallel to posterior margin of pronotum; scutellum dull 
brown, forewings translucent with veins brown; face yellow with a small black 
spot beneath dorsal carina; thoracic pleura and legs yellow. 
Holotype male, Callanga, Peru (USNM). 
M. tetrorsa, n. sp., differs from all other species in the genus in its basal 
aedeagal shaft processes. 
Mesogonia grapta, NEW SPECIES 
FicurE 401, pace 490 
Length of male 7.0 mm. Head with median length of crown slightly more 
than four-tenths interocular width and approximately one-fourth transocular 
width, ocelli located before a line between anterior eye angles, each closer to 
median line than to adjacent anterior eye angle, crown convex between ocelli, 
very shallowly concave behind apical carina, clypeus convex medially, trans- 
clypeal suture distinct. Thorax with pronotum narrower than head, dorso- 
pleural carina extending anteriorly to eye margin; forewing coriaceous with 
veins indistinct. Other external anatomical characters as in M. retrorsa, n. sp. 
Male pygofer strongly produced and convexly truncate apically, without 
setae, with a slender process arising on ventral margin, extending dorsally and 
curved slightly anteriorly and acute apically; plates not extending nearly as 
far posteriorly as pygofer apex, without a dorsal lobe in lateral view, each in 
ventral view abruptly narrowed near apex, with a number of multiseriate 
macrosetae; style extending posteriorly slightly farther than apex of connec- 
tive, without preapical lobe, gradually narrowed and subacutangular at apex; 
connective triangular; aedeagus very short compared with other species in the 
genus, broad, slightly arched and slightly broadened at truncate apex in 
lateral view; paraphyses not stalked, with a small lateral convexity on each 
side basally. : 
Crown and pronotum dull yellow with an angular small spot at apex of 
crown, a small narrow black marking on carina nearly midway between apex 
and anterior eye angle and a narrow median marking along posterior margin 
with a median short angular projection, black; pronotum with a narrow trans- 
verse arcuate dark stripe extending across basal half, interrupted medially by 
a castaneous area which extends posteriorly along the midline then laterally 
along posterior margin and surrounds an irregular black marking on each 
side; scutellum black in basal half, castaneous in apical half, a pair of 
irregular spots in basal half and extreme apical portion, yellow; forewing 
dark, with a narrow subcostal stripe extending apically to a point opposite 
claval apex, humeral and commissural margins and a broad stripe along 
