CICADELLINAE: PART 2. NEW WORLD CICADELLINI 291 
Onega fassli differs from all other species of the genus in the somewhat con- 
stricted appearance of the male pygofer at its apex, the presence of a 
paraphysis in the male, and in the basal aedeagal process. 
41. Genus DASMEUSA MeELICHAR 
Figures 237-240 
Dasmeusa Melichar, 1926a:342. Type-species: Cicada pauperata Fabricius, by subsequent 
designation of Evans, 1947a:159. 
Length 9.9-11.1 mm. 
Head well produced, median length of crown varying from slightly more 
than eight-tenths to more than nine-tenths interocular width and from one- 
half to almost six-tenths transocular width, anterior margin parabolic, without 
a Carina at transition from crown to face, ocelli located on a line between an- 
terior eye angles, each ocellus slightly closer to anterior eye angle than to me- 
dian line of crown, surface of crown slightly concave, lateral clypeal sutures 
extending onto crown and attaining ocelli; antennal ledges with anterior 
margins oblique and convex in lateral view; face with clypeus strongly convex, 
muscle impressions distinct, transclypeal suture obsolete. Pronotum with 
width approximately equal to transocular width of head, posterior margin 
slightly convex or rectilinear, otherwise as in Paromenia Melichar. Forewing 
with membrane absent or including only inner portion of inner apical cell and 
narrow apical portions of other apical cells when distinct, anteapical plexus of 
veins never present, other wing characters as in Paromenia. Hindleg with first 
tarsomere longer than combined length of more distal tarsomeres, otherwise 
as in Paromenia. 
Male genitalia: Pygofer moderately produced, macrosetae numerous and 
occurring on posterior half, without processes. Plates triangular, separate 
throughout their length, each narrowed at midlength, with uniseriate macro- 
setae in basal half, not extending posteriorly as far as pygofer apex. Style ex- 
tending posteriorly as far as or farther than apex of connective, without a 
preapical lobe, rounded apically; connective broadly T-shaped, not carinate 
medially; aedeagus with shaft short, with or without processes. Paraphyses 
long-stalked. 
Female abdominal sternum VII well produced with posterior margin sub- 
parabolic. Ovipositor with most of dorsal margin of second valvula bearing 
convex close-set teeth; apex bluntly rounded dorsally, posteroventral apical 
margin slightly concave and denticulate. Pygofer as in Paromenia Melichar. 
Specimens of Dasmeusa are pale yellow, often with tinges or spots of orange 
at base and near apex of the forewings. The genus occurs in the Guianas and 
Brazil. 
Dasmeusa Melichar is similar in many respects to Paromenia, but the species 
are more slender, and with the head more produced. The paired paraphyses 
in the male genitalia will readily separate specimens of Dasmeusa from 
Paromenia. 
