CICADELLOIDEA — EUSCELIDAE 867 



[Graminella] mohri Oman 1949a : 177 [Catalogued] 4 

 G [raminella] mohri Fattig 1955a : 65 [Listed] 5 



Localities : 1 Pennsylvania. 2 Illinois. 3 Kansas. 

 * Southeastern States. 5 Georgia. 



nigrifrons Forbes 



Cicadula nigrifrons Forbes 1885a: 67; pi. V, fig. 3 [n. sp., 



illustrated, economics] x : 68 [Comparative note] : 22 



[Listed] 1 

 Cicadula nifrifrons Van Duzee 1890h: 134 [Comparative 



note] 

 Cicadula nigrifrons Osborn 1891d: 197 [Notes, ecology] 2 

 Cicadula nigrifrons Bruner 1892a : 299 ; fig. 75 [Economics, 



illustrated] *• 3 

 Cicadula nigrifrons Bruner 1893a : 448 ; fig. 80 [Economics, 



illustrated, comparative note] 1 - 3 

 Thamnotettix perpunctata Van Duzee 1894f : 212 [n. sp.] 4 - 5 - 



6 



Thamnotettix perpunctata Van Duzee 1894a : 302 [Cata- 

 logued] 4 - 5 - 6 

 Deltocephalus nigrifrons Van Duzee 1894a: 293 [Cata- 

 logued] Equals Cicadula nigrifrons Forbes 

 D [eltocephalus] nigrifrons Van Duzee 1894e: 199 [Listed] 4 

 T[hamnotettix] perpunctata Van Duzee 1894e: 200 [Food 



plants] 4 

 Deltocephalus nigrifrons Van Duzee 1894f : 212 [Comparative 



note] 

 Deltocephalus nigrifrons Baker 1897e : 116 [Notes] 

 [Deltocephalus'] perpunctata Baker 1897e: 116 [Notes] 

 Deltocephalus nigrifrons Osborn and Ball 1897a: 218 [De- 

 scribed, ecology, catalogued] ± - 4 - 6 - 8 - 9 - 10 - n> 12 Equals D [el- 

 tocephalus] fusconervosus Van D. [error] Equals Deltoce- 

 phalus vanduzei [sic] Gill, and Bak. [error] Equals 

 Thamnotettix perpunctata Van D. Equals Cicadula nigri- 

 frons Forb. : 195 [Taxonomy] : 196, 198 [Comparative 

 notes] 

 Thamnotettix perpunctata Osborn and Ball 1897a : 195 [Tax- 

 onomy] : 219 [Comparative note] 

 Deltocephalus nigrifrons Gillette 1898c: 31 [Listed] 

 D [eltocephalus'] nigrifrons Osborn 1899a : 39 [Listed] 12 ' 13 

 [Deltocephalus] nigrifrons Ball 1900c: 343, 344 [Compara- 

 tive notes] 

 Deltocephalus nigrifrons Forbes 1900a: 66, 75; pi. II, fig. 2 



