CICADELLINAE: PART 2. NEW WORLD CICADELLINI 591 
base of inner apical cell, texture coriaceous basally, becoming gradually trans- 
lucent apically, without sculpturing; forewings of female in rest position ex- 
ceeding apex of ovipositor. Hindleg with femoral setal formula 2:1:0; first tar- 
somere shorter than combined length of two more distal tarsomeres and with 
two parallel longitudinal rows of small setae on plantar surface, some of the 
setae paleate in both rows in some specimens. 
Male genitalia: Pygofer not strongly produced, posterodorsal margin con- 
vex, posteroventral margin usually concave, with numerous macrosetae of 
varying sizes on posterior two-thirds of disk, pygofer processes absent. Plates 
triangular, not extending posteriorly as far as pygofer apex, mesal margins 
curved slightly laterad at base, with uniseriate macrosetae. Style not ex- 
tending nearly as far posteriorly as apex of connective, preapical lobe distinct 
or not, apex truncate. Connective Y-shaped with arms widely divergent, the 
stem occurring as a separate sclerite, articulating with arms, extending dor- 
sally and keeeled medially. Aedeagus short, with or without a lobate process 
on shaft. Paraphyses unpaired except at base, slender and acute apically, un- 
paired portion lying in median sagittal plane. 
Female abdominal sternum VII with posterior margin usually transverse, 
slightly produced and subangulate medially (exception: C. albolineatus 
(Taschenberg), in which it is regularly convex). Genital chamber without 
sclerites. Ovipositor with second valvula broadened beyond basal curvature, 
its ventral margin convex or concave in the expanded portion, dorsal margin 
with large primary teeth extending almost to acute apex, with secondary den- 
ticles on the primaries, without anteapical dorsal denticles or anteapical 
posteroventral denticles. Pygofer with small macrosetae near middle of disk 
and many large macrosetae before apical margin and a few near posteroven- 
tral margin. 
Specimens belonging to Ciminius have been studied from north central, 
eastern, southern, and southwestern United States, from southern Mexico, 
Panama, Venezuela, French Guiana, northeastern and southern Brazil, Peru, 
Bolivia, and Argentina. Ciminius is related to Tylozygus Fieber, in the discus- 
sion of which distinguishing characters are treated. 
Cicadella callosa Osborn is known to me only from the female type of which 
abdominal sternum VII is much like the present illustration of C. platensis 
(Berg). 
I have interpreted the commonest species of Ciminius in Argentina, judging 
from collections at hand, as Ciminius platensis (Berg), but I have seen no speci- 
men eligible to be type of this species. 
The present interpretation of Ciminius sidanus (Ball) is based on specimens 
from Arizona, compared with the type in the USNM by Dr. J. P. Kramer. 
In Ciminius taosus (Ball), the aedeagus of the male (fig. 485f) differs from 
that of Aarti (Ball) in that the ventral lobe is not as strongly developed in 
taosus. The original description of this species states in one place that the veins 
are dark, but the statement is contradicted a bit later. The veins of the female 
specimens at hand are white, the males dark. In genital characters other than 
the aedeagus, taosus is like hartt. 
