CICADELLINAE: PART 2. NEW WORLD CICADELLINI 43 
margin broadly rounded in dorsal view, in lateral view without a carina at transi- 
tion from crown to face, ocelli located slightly behind a line between anterior eye 
angles, each about equidistant from median line and adjacent eye angle, disk 
slightly convex, without sculpturing or setae, lateral clypeal sutures extending 
onto crown and nearly or completely attaining ocelli; antennal ledges with an- 
terior margins convex in lateral view; face convex, muscle impressions distinct, 
with weak sparse pubescence on lower portion, transclypeal suture obscure. 
Thorax with pronotal width greater than transocular width of head, lateral 
margins divergent posteriorly, with complete rectilinear oblique dorsopleural 
carinae, hind margin concave, disk usually without sculpturing, occasionally 
finely rugulose, without pubescence; scutellum transversely striate behind trans- 
verse sulcus. Forewing with membrane including all of inner and part of remain- 
ing apical cells, veins often indistinct, with four apical cells, base of fourth more 
proximal than base of third, without a plexus of veins, texture coriaceous, 
without sculpturing; female with wings at rest exceeding apex of ovipositor. 
Hindwing with vein R.;3 rarely entire. Hindleg with femoral setal formula 
usually 2:1:1, occasionally 2:1:0 or 2:1:1:1; first tarsomere with length greater 
than combined length of second and third tarsomeres. 
Male pygofer moderately produced and rounded apically, without or with 
only a few macrosetae interspersed among the microsetae which are located 
posterodorsally on disk, with or without processes, arising on ventral margin 
when present. Plates triangular, separate throughout their length, extending 
posteriorly as far as or slightly farther than pygofer apex, each with numerous 
microsetae not arranged in special pattern. Style extending posteriorly much 
beyond apex of connective, without preapical lobe, usually not strongly modified 
apically (exception: A. proxima (Signoret) sens. Medler). Connective Y-shaped 
with arms widely divergent, stem keeled. Aedeagus symmetrical, variable inter- 
specifically in shape, with paired processes on shaft. Paraphyses absent. 
Female abdominal sternum VII with middle portion of posterior margin pro- 
duced in a lobe which is carinate medially and excised apically. Second valvulae 
of ovipositor narrow, and fused dorsally and without teeth in basal two-thirds, 
apical third slightly broader and with minute teeth on dorsal surface. 
Species of Agrosoma occur from Mexico to Venezuela and Colombia. Species 
are usually brick red, variously marked with black and yellow or white. Medler 
(1960a) erected this genus, placing it near Hordnia Oman which I have syn- 
onymized under Graphocephala Van Duzee (p. 849), a relationship that prob- 
ably isn’t very close. The female sternum VII and second valvulae are similar 
to Tnchogonia Breddin, but the pygofer lacks the lateroventral emargination 
found in that genus and its closer relatives. I have placed it in the 7richogonia 
(see below) generic group. 
There is a considerable amount of variation in the male genitalia which was 
not mentioned in Medler’s work. In A. akenalis Medler, there is often a short 
but distinct process on the ventral pygofer margin, and in some specimens the 
anteapical processes of the aedeagal shaft are wanting (figs. 9p, 9f ). The more 
basal pair of the aedeagal processes of A. cruciata (Signoret) are also some- 
what variable. 
