CICADELLINAE: PART 2. NEW WORLD CICADELLINI 845 
My interpretation of Decua cucurbita (Ball) is based on the male allotype and 
two additional males (USNM). D. curta (Beamer) as interpreted here, is based 
on a study of four paratypes (USNM). 
The degree of intraspecific variation in the male genitalia needs additional 
study, but there seems little doubt that the two species are distinct. Beamer 
collected both species on the same date in Roswell, New Mexico, and they 
appear quite different. The male genital characters of cucurbita not illustrated 
are like those illustrated for curta. 
SPECIES OF DECUA 
cucurbita (Ball), 1936a:20 (Cicadella). Arizona, New Mexico. 
curta (Beamer), 1937a:13 (Cicadella). New Mexico. 
KEY TO SPECIES OF DECUA 
Length 5.1-5.5 mm; median pale stripe of anterior dorsum not continued 
ESM PS i Peis SR os diay oo ewe cucurbita (Ball) (fig. 682) 
Length 4.1-4.5 mm; median pale stripe of anterior dorsum continued over 
Gucwesiecrown and over ctlypcus ............2.5.0. curta (Beamer) (fig. 681) 
121. ALLONOLLA, NEw GENUS 
FicurEs 683, 684 
Type-species: Allonolla smithi, new species. 
Length of male 4.7-6.5 mm, of female 4.8-8.0 mm. 
Head not strongly produced, its median length varying from one-half to six- 
tenths interocular width and from slightly more than one-third to approx- 
imately four-tenths transocular width, apex approximately a right angle in 
dorsal view, without a carina at transition from crown to face, ocelli located 
before a line between anterior eye angles, each closer to adjacent anterior eye 
angle than to median line of crown, disk of crown variable interspecifically, 
transversely shallowly concave or not, surface of disk of crown varying from 
coarsely punctate with round punctures or with lenticular punctures, to 
longitudinally rugose, lateral clypeal sutures usually extending onto crown 
(obscured by sculpturing of surface when not so) and attaining ocelli; anten- 
nal ledges not protuberant, in lateral view with anterior margins slightly ob- 
lique and rectilinear or slightly concave; clypeus convex or very slightly flat- 
tened, coarsely punctate medially, muscle impressions distinct, face with or 
without (rubbed?) pubescence on its lower portion, transclypeal suture ob- 
solete medially, clypellus with profile of its lower portion more strongly ob- 
lique than contour of remainder of face. 
Thorax with pronotal width less than transocular width of head, lateral 
margins parallel, dorsopleural carinae complete, posterior margin concave, 
disk punctate and transversely rugose, with or without sparse pubescence; 
scutellum with sculpturing varying interspecifically. Forewing without an ap- 
pendix, without a membrane; veins elevated and distinct, with four apical 
cells and base of fourth located more proximally than base of third, with three 
closed anteapical cells, of which base of first is more distal than base of mid- 
dle cell and base of outer is angular and variable, texture coriaceous, and 
