1114 GENERAL CATALOGUE OF THE HOMOPTERA 



Deltocephalus nigrifrons [nee Forbes] Metcalf 1915a : 57 



(25) [Listed] i^ 

 Deltocephalus nigrifrons [nee Forbes] Osborn 1915a: 122 



[Deseribed, eatalogued] ^^ 

 Deltocephalus nigrifrons [nee Forbes] De Long 1916a : 43 



[Key] : 50 [Deseribed, eatalogued] ^o 

 [Deltocephalus] balli Van Duzee 1916a: 71 Nom. nov. pro 



[Deltocephalus'] nigrifrons Van Duzee [1894] [nee Cica- 



dula nigrifrons Forbes 1885] 

 D[eltocephalus] balli Sanders and De Long 1917a: 87 



[Listed] 21 

 Deltocephalus balli Van Duzee 1917b: 650 [Catalogued] i- ^' ii- 



12, 13, 17, 18, 19, 20 Equals [Deltocephalus] nigrifrons Van 



D. [nee Forbes] 

 Deltocephalus balli Yenton 1^1%^: 184 [Parasites] ^^ 

 [Deltocephalus] balli Britton 1920a: 50 [Listed] ^2 Equals 



[Deltocephalus] nigrifrons [nee Forbes] 

 Deltocephalus balli Lawson 1920a: 15 [Economies] ^^ : 160 



[Deseribed, eeology, eatalogued, eomparative note] ^^ 



Equals Deltocephalus nigrifrons Van D. [nee Forbes] 

 [Deltocephalus] nigrifrons [nee Forbes] Lawson 1920a: 139 



[Key] 

 [Deltocephalus] balli Metealf and Osborn 1920a: 110 To 



[Deltocephalus] nigrifrons Forbes (error) 

 Deltocephalus balli Osborn 1921a: 11 [Listed] ^3 

 Deltocephalus balli Lawson 1922e : 334 [Listed] '^^ 

 [Deltocephalus] balli De Long 1923a: 106 [Key] : 116 [De- 

 seribed, eatalogued] 22 Equals [Deltocephalus] nigrifrons 



Van D. [nee Forbes] 

 D [eltocephalus]balli Be Long 192Sh:S6d [Eeology] 12 

 [Deltocephalus] balli Buys 1924a : 57 [Key] ^ 

 [Deltocephalus (Deltocephalus)] balli De Long 1926d: 86 



[Key] : 93, 94 [Comparative notes] : 94 ; pi. XIX, figs. 



5, 5a-b; pi. XXIX, fig. 9 [Deseribed, illustrated, eata- 

 logued] 6' ^0- 12, 21 Equals [Deltocephalus nigrigrons [sie] 



Van D. [nee Forbes] 

 [Deltocephalus] balli De Long 1926d: 10; pi. VI, figs. 16, 16a 



[Venation illustrated] : 102 [Eeology] 

 Deltocephalus balli Osborn 1926e: 344 [Notes, food plants] 



24, 25 



Deltocephalus balli Osborn 1926e: 344 [Notes, food plants] 



24, 25 



Deltocephalus balli Stearns 1927a : 13 [Food plants] 26 



