CICADELLINAE: PART 2. NEW WORLD CICADELLINI 49 
Tahuampa desmotis, NEW SPECIES 
Ficure 14 
Length of male 11.5-12.0 mm. External structural characters as in generic 
description. Male genitalia: Plates in ventral view abruptly narrowed ante- 
apically; aedeagus with shaft longer and not as broad as in T. septemfasctata 
(Signoret), and with a pair of small angular processes on posterior margin near 
base; paraphyses curved through slightly less than 90° near base, the arms 
curved slightly ventrally and angulate near midlength of their ventral margins, 
each acute at apex. Other genital characters as in septemfasciata (fig. 13). Female 
abdominal sternum VII as in generic description. 
Color of dorsum black, a broad stripe across posterior portion of crown be- 
_ tween eyes, a slightly arcuate stripe across pronotum, and four broad transcom- 
missural stripes extending from costal margin to costal margin across forewings 
at rest, the first involving apical half of scutellum, the second across midclavus, 
the third nearly at claval apex, the fourth from costal margin across anteapical 
cells to inner apical cell, dull yellowish-gray. Face and pleura dull yellow, a 
broad transverse stripe at base and before apex of clypeus, median apical portion 
of clypellus and apical portions of legs, black. . 
Holotype male, Rio Santiago, Peru, August 28, 1924, and female topotype, 
October 1, 1924 (AMNH). : 
T. desmotis, n. sp., is closely related to septemfasciata from which it may be dis- 
tinguished readily by the color characters in the above key. It differs also in the 
aedeagus, as described above, and in the paraphyses which are much more slen- 
der than in septemfasciata. 
7. Genus TRICHOGONIA BreEpDDIN 
Figures 15-20 
Tnchogonia Breddin, 1901c:75. Type-species: Trichogonia ardentula Breddin, by original 
designation. 
Length 8.3-10.4 mm. 
Head weakly produced, with median length from slightly more than four- 
tenths to two-thirds interocular width and from one-third to almost four-tenths 
transocular width, anterior margin broadly rounded in dorsal view, with a com- 
plete carina separating crown from face, ocelli located on or slightly behind a line 
between anterior eye angles, each slightly closer to median line of crown than to 
adjacent anterior eye angle, disk of crown concave, often with an indistinctly 
delimited elevation behind each ocellus, with regularly arranged fine pubescence 
(specimens often rubbed), lateral clypeal sutures not extending onto crown; an- 
tennal ledges protuberant in dorsal aspect, in lateral aspect with their anterior 
margins vertical or slightly oblique; face with clypeus convex, finely pubescent, 
muscle impressions distinct, transclypeal suture obscure. 
Thorax with pronotal width greater than transocular width of head, lateral 
margins convergent anteriorly, dorsopleural carinae oblique and usually com- 
plete, hind margin concave, disk transversely rugose, uniformly finely pubescent; 
scutellum transversely rugose on posterior half. Forewing with membrane 
