CICADELLINAE: PART 2. NEW WORLD CICADELLINI 151 
than three-tenths to slightly more than one-third transocular width. Other ex- 
ternal structural characters as in generic description. Male pygofer with 
posterior margin broadly convex, with a dorsoapical undifferentially 
sclerotized acute process directed mesad and crossing median line; plates ex- 
tending posteriorly beyond pygofer apex, each triangular, gradually narrowed 
from base to apex; style extending posteriorly much beyond apex of con- 
nective which is Y-shaped with the arms widely divergent; aedeagus with a 
very large median dorsal process which is very broad in lateral view; aedeagus 
in ventral view with a pair of triangular lateral expansions, irregular in out- 
line at their apices, at midlength of process and with its apex expanded as a 
simple lobe or as a pair of short divergent processes; shaft very short, round- 
ed apically. Female unknown. 
Color of crown, pronotum, and scutellum, yellow, crown with a broad 
interrupted subapical transverse marking, connected across the median area 
by a narrow arcuate more posterior marking, a triangular marking adjoining 
inner margin of each eye and not extending beyond inner margin of ocellus on 
each side, and posterior margin narrowly, black; pronotum with an elongate 
median triangular marking on posterior half extending laterobasally along 
posterior margin almost to humeral angles, and on each side a broad diagonal 
stripe extending anteromesally parallel to side of median marking from 
posterior two-thirds of disk, not attaining anterior pronotal margin, enclosing 
a yellow areole anteriorly, thence extending laterally and ending on each side 
behind eye, black; scutellum with a pair of elongate triangular markings from 
base to transverse sulcus and a transverse marking in posterior half, black. 
Forewings with a fumose area extending from apex of each humeral margin 
caudolaterally across clavus and becoming diffuse in corium. Face and 
thoracic pleura, yellow, with a longitudinal clypeal black marking on each 
side continuous with most anterior marking described (above) on crown, 
broad clypeal border of each lateral clypeal suture, transclypeal suture broad- 
ly and apical median vitta on clypellus, margins of lora and genae and a ver- 
tical marking on each gena between eye and loral suture, black. Legs yellow 
to brown. 
Holotype male, five miles SW of “Las Palmas”, Hudnuco, Peru, elevation 
1,000 m., October 16, 1954 (E. I. Schlinger and E. S. Ross) and one male 
topotype, same data; six additional male specimens, Monsén Valley, Peru, 
September-November, 1954 (CAS). 
L. schlingen, n. sp., differs from all of the other species in the genus in the 
bizarre shape of the dorsal process of the aedeagus. The species is probably 
most closely related to L. pereneensis, n. sp. (below), which it resembles ex- 
ternally and with which it occurs sympatrically. The males can be dis- 
tinguished readily, externally; by the male plates which are abruptly 
narrowed in their basal halves in pereneensis, gradually tapered throughout 
their length in schlingert. 
This species is named in honor of one of its collectors, Dr. E. I. Schlinger. 
