434 
General Catalogue of the Homoptera 
Blanchard 1850a: 187 [Listed] :195, 197 [Compara¬ 
tive notes] :188 [Described] Equals Ptyela Le P. 
and Serv. [in part.] Equals Cicada Linne [in 
part.] Equals Cercopis Fabr. [in part.] 
Spinola 1850a: 56 [Key] 
Fitch 1851a: 52 [New species from New York] 
Walker 1851b: 697 [New species from various re¬ 
gions] Equals Cicada Linne [in part.] Equals 
Tettigonia de Tigny [in part.] Equals Cercopis 
Fabr. [in part.] 
Harris 1852a: 196 [Listed] 
Kollar 1852a: 5 [Listed] 
Spinola 1852a: 273 [Described] Equals Ptyelus [in 
part.] Equals Lepyronia Amy. and Serv. [in 
part.] 
de Graaf and Snellen van Vollenhoven 1854a: 182 
[List of species from the Netherlands] 
Fairmaire 1855a: 166 [Key, comparative note] :167 
[Described] 
Stal 1855a: 96 [A new species from Natal] 
Fitch 1856a: 388, 389 [Comparative notes] 
Dallas 1857a: 413 [Notes] 
Walker 1858a: 93 [New species from various regions] 
:110 [New species from Natal] 
Walker 1858b: 186 [New species from various 
regions] 
Walker 1858c: 345 [Catalogued] 
Desmarest 1859a: 197 [Described] 
Dohrn 1859a: 68 [List of species] 
Say 1859e: 381 [New species from the United States] 
Walker 1860a: 18 [Listed] 
Favarcq 1861a: 80 [Listed] 
Flor 1861a: 114 [Key] :132 [Described, key to 
species] 
Flor 1861c: 637 [Listed] 
de Graaf, Six, and Snellen van Vollenhoven 1862a: 
79 [Catalogue of species from Holland] 
Schaum 1862a: 54 [New species from Africa] 
Signoret 1862b: 593 [Listed] 
Stal 1862a: 22 [Comparative note] 
Stal 1862c: 480 [Listed] 
Stfil 1862d: 593 [Listed] 
Stal 1862e: 15 [Listed] 
