CICADELLINAE: PART 2. NEW WORLD CICADELLINI jbugl 
angles, each slightly closer to adjacent anterior eye angle than to median line, 
without a transverse concavity before ocelli; other head characters as in D. 
fenestratus, n. sp. Pronotum not transversely rugose; forewing with veins dis- 
tinct; hindwing with jugal lobe not enlarged. 
Male genitalia as in D. knighti, n. sp. except aedeagus which is much shor- 
ter and broader, and male plates each of which is less convex on lateral mar- 
gin near base (fig. 101d). 
Female abdominal sternum VII broadly and shallowly concave. 
Crown, pronotum, and scutellum, dull yellow, a spot at apex of crown, 
narrow anterior margin of pronotum, a transverse band before posterior 
pronotal margin, basal half and extreme tip of scutellum, black. Forewing 
hyaline, a stripe bordering humeral and commissural margins of clavus, 
brachial cell, basal two-thirds of outer anteapical cell, veins before apical cells 
and a broad marginal apical area, smoky. Face and venter pale brown except 
apical two-thirds of clypellus which is black. 
Holotype male and three females. Bogota, Colombia (Lindig.) (RMS). 
D. nigrovenosus, n. sp. is closely related to D. knighti, n. sp., from which it 
may be separated most readily by the shape of the aedeagus (figs. 98f and 
101f). It is also closely related to D. errabundus, n. sp., from which it may be 
distinguished by the characters in the key. 
Dilobopterus clypeatus, NEW SPECIES 
FIGURE 76, PAGE 120 
Length of male 9.0-9.1 mm. Head with median length varying from slightly 
less than one-half to slightly more than one-half interocular width and from 
slightly less than one-third to almost four-tenths transocular width; ocelli 
located behind a line between anterior eye angles and each closer to adjacent 
anterior eye angle than to median line of crown, without a transverse con- 
cavity before ocelli; antennal ledges with a very slightly concave dorsal area, 
other head characters as in D. fenestratus, n. sp. Pronotum without sculpturing; 
forewing with membrane including apical cells; hindwing with jugal lobe not 
enlarged. 
Pygofer with numerous macrosetae on disk from near base to posterior 
margin and with a number of microsetae along posteroventral margin, 
without processes; plates extending posteriorly as far as pygofer apex, each 
triangular, abruptly narrowed in basal half and with few macrosetae on basal 
half; style extending posteriorly considerably beyond apex of connective, 
without distinct preapical lobe; connective very broad, keeled medially; 
aedeagus symmetrical, without processes; paraphysis unpaired, asymmetrical, 
blunt at apex. 
Female unknown. 
Anterior dorsum pale yellow to old golden, with black transverse stripes at 
apex and middle of crown, anterior part of pronotum and base of scutellum; 
posterior margin of pronotum broadly bordered with chocolate brown, 
scutellar apex brown. Forewings with a transverse basal transcommissural 
dark vitta across apex of scutellum and on each wing attaining brachial cell 
