168 N. C. AGR. EXP. STA. BUL. 239 
Female unknown. 
Species of Willeiana, new genus, occur in Peru, Bolivia, and Costa Rica. 
The male genitalia of species of Willetana are very similar to those of some 
species of Dilobopterus, but the texture of the forewing is opaque in Willeiana 
and the hindwings are not shorter than the forewings. Also the metathoracic 
meron is not exposed in Willeiana. Willeiana is similar, in the structure of the 
female genitalia, to Amblyscarta Stal, and the new genera Begonalia and 
Gorgonalia. All of these lack paraphyses in the males. 
There is a great deal of variation in appearance between species of Willeiana 
and within the species W. vallonia (Distant). The variation in the latter in- 
cludes proportions of the crown as well as color pattern, and accounts for the 
already considerable synonymy (see list of species, below). The other species 
have a color pattern similar to that found in many species of Macugonalia, with 
the crown mottled and the pronotum partly or entirely mottled. 
My identification of Cicadella nigricula Osborn is based on an examination of 
the holotype and a comparison of other specimens with it. 
I have examined lectotypes of all the nominal species listed as synonyms of 
Willetana vallonia (Distant) in the following list of species. 
SPECIES OF WILLEIANA 
maculoidea, n. sp. Colombia, Peru. 
nigricula (Osborn), 1926b:216 (Cicadella). Peru, Bolivia. New combination. 
vallonia (Distant), 1908a:522 (Tettigoniella). Peru, Bolivia, Brazil. New combination. 
daeta (Distant), 1908a:522 (Tettigoniella). New synonymy. 
ulla (Distant), 1908a:522 (Tettigoniella). New synonymy. 
avallona (Melichar), 1932a:308 (Cardtoscarta). New synonymy. 
rogata (Melichar), 1932a:308 (Cardtoscarta). New synonymy. 
albobifasciata (Melichar), 1932a:327 (Cardioscarta). New synonymy. 
semiflava (Melichar), 1932a:328 (Cardioscarta). New synonymy. 
maculicosta (Melichar), 1932a:328 (Cardtoscarta). New synonymy. 
versigonoidea, n. sp. Costa Rica. 
KEY TO SPECIES OF WILLEIANA 
1. Length of male greater than 9.5 mm; crown with middle uninterrupted 
0) FT ae RE I Pitt pagel one Pinay Ee aek Delage vallonia (Distant) (fig. 130) 
Length of male less than 9.0 mm; crown mottled black and yellowish, or 
black with small yellow, spots. -¢.....++« «mas mcm suih nena 2 
2. Forewings dark, each with three conspicuous large pale spots 
megricula (Osborn) (fig. 131) 
Forewings without conspicuous pale spots .............0c.eeeeeeeueeees 3 
3. Pronotum entirely mottled with yellow; clypellus with a narrow median 
Diack stripe’ <5 viens ok cree. See ee versigonoidea, n. sp., page 170 
Pronotum with yellow markings only near its anterior margin; clypellus ; 
almost entirely Diack). ere; . ere, enecee: ae maculoidea, n. sp., page 171 ~ 
