CICADELLINAE: PART 2. NEW WORLD CICADELLINI 555 
Specimens of 7ipuana Melichar are either very pale with longitudinal brown 
stripes over crown and pronotum and oblique dark stripes on corium opposite 
claval apex, or black dorsally (7. albula (Osborn) and two similarly-colored 
forms not described here) with pale spots of several sizes and shapes. In these 
dark forms, a transcommissural pale translucent spot in the clavus is con- 
spicuous because, with the wings at rest, it occurs above a larger transparent 
spot in the folded hindwings. All specimens are pale beneath. I have re- 
frained from describing these two dark forms with different male genitalia be- 
cause the specimens are almost identical in other characters, because of the 
variability encountered in the related genus Diedrocephala Spinola, because of 
variation found within albula in a strict sense, and because asymmetrical 
apical aedeagal processes often tend to vary in the tribe. The genitalia of these 
two forms are illustrated in figures 273 and 274. A specimen of albula from 
San Gabriel, Brazil has an aedeagus in which the dorsal retrorse process is 
lacking and the ventral process near the base of the shaft is slightly different. 
Three males from French Guiana have genitalia like figure 274. Only the 
specimen illustrated, from French Guiana, had genitalia like figure 273. 
The range of 7ipuana is French Guiana, Brazil, Ecuador, and Peru. Tipuana 
is related to Diedrocephala Spinola from which it differs in the presence of four 
apical cells in the forewing, and in that the outer anteapical cell reaches the 
base of the apical cells. Tipuana is also close to Platygonia Melichar, in the dis- 
_ cussion of which differences are noted. 
My identification of Diedrocephala albula Osborn rests on a study of the para- 
type illustrated in figure 270. 
The new species, Tipuana expallida, described below, is the same as 
Melichar’s unpublished interpretation of 7. egregia, a nomen nudum, cited in 
the literature as type-species of the genus. 
SPECIES OF TIPUANA 
albula (Osborn), 1926b:220 (Diedrocephala). Fr. Guiana, Brazil. New combination. 
chirensis, n. sp. Peru. 
expallida, n. sp. Peru. 
Ky VO MALES OF 7TIPUANA 
1. Forewings opaque; aedeagus with a median ventral keel in basal half 
albula (Osborn) (fig. 270) 
Forewings pale translucent; aedeagus not keeled ............... eS onrer ie Z 
2. Styles truncate apically; aedeagus without apicoventral processes; pygo- 
fer with dorsoapical margin not truncate ................ chirensis, n. Sp. 
Styles narrowly rounded apically; aedeagus with apicoventral processes; 
pygofer produced and truncate dorsoapically 
expallida, n. sp., page 339 
Tipuana chirensis, NEW SPECIES 
FIGURE 271 
Length of male 9.1 mm, of female 10.4 mm. Head moderately produced, 
median length of crown varying from two-thirds to seven-tenths transocular 
