CICADELLINAE: PART 2. NEW WORLD CICADELLINI Sit 
ocelli, extending forward and broadening behind apical carina; antennal 
ledges with anterior margins concave in lateral view; clypeus slightly flattened 
medially, muscle impressions distinct or not; face pubescent beneath, trans- 
clypeal suture indistinct medially. Thorax with dorsopleural carina extending 
anteriorly to eye margin; forewing translucent with veins not very distinct. 
Other external structural characters as in M. retrorsa, n. sp. (p. 489). 
Male pygofer moderately produced, dorsoapical margin subangularly 
rounded, with a few anteapical macrosetae, without processes; plates ex- 
tending posteriorly almost as far as pygofer apex, each without a dorsal lobe 
in lateral view, each in ventral view gradually tapered from base to apex, with 
a number of microsetae, style extending posteriorly much farther than apex of 
connective, with a distinct preapical lobe, apical portion acute and sub- 
parallel to axis of shank; connective subquadrate; aedeagus arched ventrally 
with apex gradually and slightly curved dorsally, without processes; para- 
physes absent. 
Crown, pronotum, and scutellum dull orange, with a pair of conspicuous 
black spots in basal angles of scutellum; forewing with basal halves of clavi 
and adjacent brachial cells pale translucent, remainder smoky translucent, 
each with a narrow orange stripe bordering costal margin to point opposite 
claval apex; face with clypeus pale (holotype) or black with pale area on each 
side beneath antennae, lora and genae black, clypellar apex yellow; propleura 
yellow marked with black. 
Holotype male, Pozuzo, Peru (Schaufuss). One topotypic male with head 
missing, and one male with locality label “Peru” (MMB). 
M. lobata, n. sp., appears to be closely related to M. monsonensis, n. sp., and 
M. cardinula (Osborn), from both of which it may be distinguished readily by 
its lack of a dorsal lobe on the male plate in lateral view, and the presence of 
the anteapical lobe of the style. 
Mesogonia vexativa, NEW SPECIES 
FicurRE 420, PAGE 509 
Length of male 7.4 mm. Head with median length of crown from one-half 
to slightly less than six-tenths interocular width and approximately one-third 
transocular width, ocelli located slightly behind a line between anterior eye 
angles, each closer to median line of crown than to adjacent anterior eye 
angle, crown with a broad concavity between ocelli and anterior carina; an- 
tennal ledges with anterior margins concave in lateral view; clypeal muscle 
impressions distinct; face pubescent beneath. Forewing translucent (holotype) 
or coriaceous, veins distinct. Other external structural characters as in M. 
retrorsa, n. sp. (p. 489). 
Male pygofer moderately produced, dorsal margin with an anteapical con- 
vex lobe, dorsoapical margin angular, with a few anteapical macrosetae, 
without processes; plates not extending as far posteriorly as pygofer apex, 
without a dorsal lobe in lateral view, each in ventral view abruptly tapered 
near base, with a number of short microsetae; style extending posteriorly 
