1920] Ball: Review of the Genus Gypona 87 



placed Cercopis glauca Fab. as his first species and type of his 

 genus. This is a South American species resembling melanota 

 but much larger. 



Key to the Species of Gypona Burm. 

 A. Head broad, vertex rounding, species golden, green or black. 



B. Broad and stout {verticalis excepted), with more or less of black 

 in the males, not confined to the appendix and with black dots on 

 pronotum. 

 C. Vertex short, ocelli closer to eyes than to each other. Dull 

 green, usually with more or less black on median dorsal line. 



1. dor salts vSpgb. 

 CC. Vertex longer, ocelli equidistant, males frequently shining 

 black. 

 D. Stout, elytra short, female dull green, male green or 



shiny black, elytra often hyaline 2. melanota Spgb. 



DD. Slender, elytra long, parallel, female golden, male gold 



and smoky to shining l:)lack 3. verticalis Stal. 



BB. Species smaller, golden, green or testaceous, without markings except 



sometimes a smoky line on appendix 4. unicolor Stal. 



AA. Head narrow, vertex angulate, ocelli nearer each other than eye, species 

 pale, no spots or markings 5. angulata Spgb . 



1. Gypona dorsalis Spg. 



Gypona dictitoria Gib. 



Big broad, green, unmarked or with variable irregular 

 dark spots and marks mostly confined to the median line, 

 often a pair of round black spots just behind the ocelli, irregular 

 angular markings on scutellum and numerous smaller ones along 

 scutellar and sutural margins of elytra. The dorsum of the 

 abdomen may be dark at the base. 



This species occasionally has a few reticulations near the 

 tip of the elytra, but the stout body, shorter vertex and dark 

 markings will separate it from the species of Gyponana, while 

 the broadly produced median lobe between two acute, lateral 

 ones of the female segment will separate it from all others. 

 Spangberg described dorsalis from Mexico, while Gibson 

 described it again from Arizona examples. The writer has 

 examples from New Mexico and Arizona. It is probably 

 confined to the Southwest. Gibson places dorsalis as a synonym 

 of angulata with a question. They are, however, very distinct 

 as originally described, dorsalis being twice as wide as angulata. 



>? 



Gypona melanota Spangb. 



Gypona bipunctulata Woodw. (not Gibs.); Gypona nigra Woodw.; Gypona bimaculata 

 Gib. (not Spangb.); Gypotta unicolor Gib. (not Stal). 



This is the broadest and shortest of our leafhoppers. Female 

 pale green, unmarked except that they sometimes have a pair 



