

CICADELLOIDEA — EUSCELIDAE 869 



Deltocephalus perpunctatus Metcalf 1915a: 57 (25) [Listed] 



5 



Deltocephalus nigrifrons Osborn 1915a: 122 [Described, ecol- 

 ogy, catalogued] 32 

 Deltocephalus nigrifrons De Long 1916a: 50 [Described, cata- 

 logued] 25 Equals Cicadula nigrifrons Forb. : 43 [Key] 

 : 6 [Food plants] 

 Deltocephalus nigrofrons [sic] Gibson 1916b: 179 [Listed] 33 

 [Thamnotettix] nigrifrons Van Duzee 1916a: 74 [Listed] 28 



Equals [Thamnotettix] perpunctata Van D. 

 Thamnotettix nigrifrons Lathrop 1917a: 124 [Listed] 24 

 Th[amnotettix] nigrifrons Sanders and De Long 1917a: 91 



[Listed] 34 

 Thamnotettix nigrifrons Van Duzee 1917b: 684 [Catalogued] 

 i, 4, 5, e, 9, ii, 12, i4, is, it, 20, 35, si Equals Cicadula [nigrifrons] 

 Forb. Equals [Thamnotettix] perpunctata Van D. Equals 

 Deltocephalus [perpunctatus] Mete. 

 Thamnotettix nigrifrons Lathrop 1919a: 81 [Described, cata- 

 logued] 24 Equals Cicadula nigrifrons Forbes Equals 

 Deltocephalus nigrifrons Van D. : 79 [Key] 24 

 Thamnotettix nigrifrons Barber 1920b: 149 [Listed] 51 

 [Thamnotettix] nigrifrons Britton 1920a: 51 [Listed] 35 



Equals [Thamnotettix] perpunctata Van D. 

 Thamnotettix nigrifrons Lawson 1920a: 216 [Described, ecol- 

 ogy, catalogued] 21 Equals Cicadula nigrifrons Forb. 

 Equals Thamnotettix perpunctata Van D. Equals Delto- 

 cephalus nigrifrons Osb. and Ball : 209 [Key] 

 [Deltocephalus] nigrifrons Metcalf and Osborn 1920a: 110 

 [Comparative note] Equals [Deltocephalus] balli Van D. 

 [error] 

 Thamnotettix nigrifrons Osborn 1921a: 13 [Listed] 17 

 Thamnotettix nigrifrons Severin 1921c : 22 [Listed] 13 

 Thamnotettix nigrifrons Lawson 1922c: 335 [Listed] 21 

 Thamnotettix nigrifrons Balduf 1923a: 163 [Ecology] 14 

 T [hamnotettix] nigrifrons De Long 1923a: 137 [Described, 

 catalogued] 35 Equals T [hamnotettix] perpunctata Van D. 

 Equals Cicadula nigrifrons Forb. : 134 [Key] 

 Thamnotettix nigrifrons De Long 1923b : 368 [Ecology] 15 

 [Deltocephalus] nigrifrons De Long 1923c: 263 [Compara- 

 tive note] 

 Thamnotettix nigrifrons Olsen 1923b : 174 [Listed] 20 Equals 



Thamnotettix perpunctata Van D. 

 Thamnotettix nigrifrons Wolcott 1923a : 264 [Food plants] S9 



