CICADELLINAE: PART 2. NEW WORLD CICADELLINI 225 
Ovipositor with second valvulae varying interspecifically, each with the broad 
toothed portion extending from near basal curvature to apex, the teeth more 
uniform throughout length than in Amblyscartidia, apex convex, ventral 
margins of valvulae varying interspecifically from convex to concave. Pygofer 
with a few larger macrosetae in a group near apex and a few macrosetae or 
microsetae parallel to posteroventral margin. 
Exogonia Melichar is similar to Amblyscartidia but differs in that the head is 
always more strongly produced than in Amblyscartidia, the pygofer and 
aedeagus are longer in the males, the pygofer of the female has fewer setae, 
and the teeth of the second valvulae of the ovipositor, although variable, are 
never as in the constant pattern found in Amblyscartidia. 
Species of Exogonia Melichar are varied in color. The genus is known only 
from southern Brazil. 
My identification of the nominal species is based on an examination of the 
holotype of Tettygonia semiwitta Walker, and the lectotypes of the others. 
SPECIES OF EXOGONIA 
assimilts (Signoret), 1853b:340 (Tettigonia). S. Brazil. 
hyalinosparsa (Melichar), 1932a:316 (Cardioscarta). S. Brazil. New combination. 

FIGURE 184.—Exogonia semivitta (Walker) (from specimens from Bahia, Brazil; 
h from dorsal view): p, Teeth near base of second valvula of ovipositor. 
