CICADELLINAE: PART 2. NEW WORLD CICADELLINI 305 
femoral setal formula 2:1:1, length of first tarsomere approximately equal to 
or greater than combined length of two more distal tarsomeres. 
Male genitalia: Pygofer moderately produced, posterior margin convex, 
setae variable interspecifically. Plates triangular, very short, not extending 
nearly as far posteriorly as pygofer apex, with uniseriate macrosetae or with 
numerous multiseriate microsetae. Style variable interspecifically in length 
with respect to apex of connective, but not extending posteriorly beyond it. 
Connective Y-shaped, with a median keel. Aedeagus symmetrical, with a 
single ventral tapered process which is acute apically, arising at base and cur- 
ved gradually dorsally throughout its length; shaft broad in lateral view and 
convex apically. Paraphyses absent. 
Female abdominal sternum VII with posterior margin varying from almost 
rectilinear to angulate at apex. Pygofer with macrosetae variable inter- 
specifically. Ovipositor with second valvulae broadened in three-fourths to 
almost all of portion beyond basal curvature, and bearing quadrate teeth. 
Pygofer with macrosetae varying interspecifically (all of female description 
based on dissections of gratiosa (Blanchard) and cayennensis). 
I have seen specimens of Parathona Melichar from Panama, Trinidad, 
Venezuela, Colombia, Bolivia, and central and southeastern Brazil to 
Paraguay and Argentina. Metcalf (1965a:649) cited published records from 
Mexico and French Guiana for P. cayennensis (Gmelin), as well as from India. 
The Indian record (Evans 1947a:170) is undoubtedly an error. Nothing is 
known of the biology of this genus. The relationship of Parathona to other 

FIGURE 250.—Parathona albostriata (Signoret) (7 from lectotype; remainder from 
specimen from Vicosa, Minas Gerais, Brazil). 
