CICADELLINAE: PART 2. NEW WORLD CICADELLINI 131 
jugal lobe enlarged, in rest position extending posteriorly almost to claval 
apex of forewing. Other external structural characters as in axillaris. 
Pygofer more slender and more produced than in axillaris, much as in il- 
lustration of demissus (Fabricius) (fig. 92c) except that setae are much more 
numerous; plates extending posteriorly almost as far as pygofer apex, each 
elongate, triangular, abruptly narrowed in basal half, with uniseriate macro- 
setae on apical three-fourths; style extending posteriorly considerably beyond 
apex of connective, with a preapical lobe; connective elongate for the genus, 
Y-shaped, the arms widely divergent, strongly keeled; aedeagus symmetrical 
with a conspicuous truncate dorsal process which is separated from shaft by a 
deep concavity; paraphyses consisting of a pair of basally directed basal 
processes and a pair of dorsally directed apical processes. 
Crown black to amber, dorsal carinae of antennal ledges, a longitudinal 
marking behind each ocellus, a pair of oblique divergent markings on base, 
arcs between muscle impressions and a median cruciate marking, paler 
yellow. Pronotum amber, anterior margin broadly black, lateral and posterior 
margins dark; scutellum black in basal half, pale in apical half, with a pair of 
yellow spots on basal margin and with or without (type) a pair of black- 
centered circular yellow spots behind these; forewing hyaline with a brownish 
hyaline area in basal portions of outer anteapical cells which broadens and 
extends to costal margin. Face yellow with a broad median black stripe of ir- 
regular width over clypeus and clypellus, not covering lora. 
Holotype male, Chapada, Brazil, November, from the Baker collection, one 
additional male, Rurrenabaque, Bolivia (USNM). One male, Tingo Maria, 
Peru (CAS). One male, Swedish Amazon Expedition, 1923-25 (remainder of 
label illegible) (RMS). 
D. ponerus, n. sp., is closely related to D. dispar (Germar) but differs in the 
form of the aedeagus which has the dorsal lobe more deeply separated from 
the shaft than the Germar species. It differs also from dispar in the form of the 
paraphyses and in the markings of the anterior dorsum and face. 
Dilobopterus disparulus, NEW SPECIES 
FIGURE 86, PAGE 126 
Length of male 7.1 (type) -7.7 mm. Head with median length varying from 
slightly less than six-tenths to slightly more than two-thirds interocular width 
and from one-third to slightly more than four-tenths transocular width, an- 
terior margin in dorsal aspect much more narrowly rounded than in D. 
axillaris, n. sp.; ocelli located well behind a line between anterior eye angles 
and each approximately equidistant from adjacent eye angle and median line 
of crown, with a very shallow concavity near midlength; antennal ledges with 
anterior margins obliquely convex. Pronotum indistinctly transversely 
rugulose; forewing with a large hyaline area in basal two-thirds, veins in- 
distinct; hindwing with jugal lobe greatly enlarged, in rest position extending 
posteriorly slightly beyond claval apex of forewing. Other external characters 
as in axillaris. 
