CICADELLINAE: PART 2. NEW WORLD CICADELLINI 571 
concave, pronotal disk transversely rugulose, not pubescent; scutellum not 
transversely striate behind transverse sulcus. Forewing with membrane in- 
cluding all of apical cells and extending proximad broadly along costal 
margin often almost to wing base, veins elevated, distinct, with three closed 
anteapical cells, of which the base of the middle one is located more prox- 
imally than base of either of the adjoining ones, with four apical cells, the 
base of the fourth more proximal than base of third, without an anteapical 
plexus of veins (occasionally with one or a very few extra cross veins), texture 
coriaceous and transversely rugulose; forewings of female in rest position ex- 
ceeding apex of ovipositor or not. Hindleg with femoral setal formula 2:1:1 or 
occasionally 2:1:0 or 2:1:1; length of first tarsomere approximately equal to 
combined length of two more distal tarsomeres, with two parallel rows of 
setae on plantar surface, the more proximal setae in one row of these paleate. 
Male genitalia: Pygofer moderately produced, apex narrowly convex, with a 
number of small macrosetae located parallel to posteroventral margin, pygofer 
processes absent. Plates triangular, extending posteriorly as far as pygofer 
apex, each with a longitudinal row of macrosetae. Style not extending 
posteriorly as far as apex of connective, without a preapical lobe, acute apico- 
laterally. Connective broadly Y-shaped. Aedeagus moderately long, without 
processes. Paraphyses symmetrical, broad at base, rami broad in lateral view. 
Female abdominal sternum VII with posterior margin broadly produced 
and shallowly notched medially. Genital chamber without sclerites. Ovipositor 
with second valvula expanded and bearing dorsal teeth almost throughout 
length beyond basal curvature, its ventral margin convex in the expanded por- 
tion, teeth rounded near base, with large quadrate primary teeth extending 
almost to narrowly convex apex, with minute secondaries on primary teeth 
and with minute anteapical denticulations on dorsal and _ posteroventral 
margins, without an anteapical ventral angle. Pygofer, narrowly rounded 
apically, with macrosetae near posterodorsal and posteroventral margins. 
Cicadella viridis (L.) (1758a:438) is the only known species. It is well known 
and widely distributed in the Old World, having been recorded from all of 
Europe, Syria, Palestine, Siberia, Manchuria, Korea, China, India, Malaya, 
Java, Ceylon, the Ryukyu Islands, Formosa, Japan and the Philippines. A few 
references to the occurrence of viridis in Canada are probably wrong. 
Cicadella, the only European genus of Cicadellinae, is very similar in struc- 
ture of both male genitalia and the ovipositor of the female to the Western 
Hemisphere generic group that includes Chlorogonalia, new genus, 
Draeculacephala Ball, and Carneocephala Ball. A comparison of these structures in 
Cicadella viridis (L.) (fig. 468) and Chlorogonalia coeruleovittata (Signoret) (fig. 
469), shows remarkable similarities. Cicadella has an incomplete dorsopleural 
carina on the prothorax, a characteristic very common in Old World 
Cicadellinae, and uncommon in New World genera of this subfamily, but it is 
reduced in some species of the above generic group in the New World. The 
occurrence of pegs in the proximal portion of one of the rows of plantar setae 
on the first tarsomere of the hindleg is unusual in the Cicadellinae, but it also 
occurs in the related. genera Draeculacephala and Carneocephala. 
