CICADELLINAE: PART 2. NEW WORLD CICADELLINI 659 
87. SELVITSA, NEw GENUS 
Figures 538-545 
Type-species: Tettigonia humeralis Signoret. 
Length 8.5-13.5 mm. 
Head scarcely or only slightly produced, median length of crown from one- 
third to one-half interocular width and from one-fifth to one-third transocular 
width, anterior margin broadly rounded in dorsal view, without a carina at 
transition from crown to face, ocelli located behind a line between anterior 
eye angles, each closer to adjacent anterior eye angle than to median line of 
crown, crown usually convex, with or without a slight concavity across ocelli, 
without a median fovea, surface with or without sculpturing, without setae, 
lateral clypeal sutures extending onto crown and attaining ocelli; antennal 
ledges not protuberant, in lateral view with anterior margins rectilinear and 
either vertical or oblique; clypeus convex or flattened, muscle impressions in- 
distinct, surface without pubescence, transclypeal suture interrupted or en- 
tire, clypellus variable in profile, continuing contour of clypeus or with its 
apical portion curved abruptly posteroventrally. 
Thorax with pronotal width less than transocular width of head, lateral 
margins parallel, dorsopleural carinae complete or not, posterior margin 
shallowly concave, disk transversely rugose, not pubescent; scutellum not 
striate or only minutely rugulose behind transverse sulcus. Forewing with 
membrane including all of apical cells, veins distinct or not, scarcely elevated, 
with four apical cells, the base of fourth variable (intraspecifically in S. 
vermiculata, n. sp.) in relation to base of third, without an anteapical plexus of 
veins, texture coriaceous and punctate or without sculpturing; forewing of fe- 
male in rest position exceeding apex of ovipositor. Hindleg with femoral setal 
formula 2:1:1; length of first tarsomere equal to or greater than combined 
length of two more distal tarsomeres and with two parallel rows of small 
setae, the rows joined apically by additional similar setae, on plantar surface. 
Male genitalia: Pygofer moderately produced, with a very few to more than 
twenty macrosetae, variable interspecifically in location but not regularly dis- 
persed over surface, apical margin bearing a process (exception: S. exaireta, n. 
sp.). Plates triangular, fused basally, extending as far or almost as far 
posteriorly as pygofer apex, with short, usually multiseriate macrosetae. Style 
extending posteriorly to a varying degree with relation to apex of connective, 
with preapical lobe weak or wanting. Connective short, variable in form, often 
somewhat papilioniform, not keeled. Aedeagus variable. Paraphyses usually 
absent (present in exazreta). 
Female abdominal sternum VII broad and fairly short, posterolateral lobes 
developed or not, with a narrow median posterior projection which is acute or 
truncate apically. Dorsal membrane of genital chamber, with or without a 
conical invagination near first valvifer (when present scarcely visible in dried 
specimens), with or without sclerites. Ovipositor with second valvulae broad 
almost throughout their length, dorsal margins varying from regularly convex 
to slightly concave near midlength, with primary teeth usually convex and 
