34 
General Catalogue of the Homoptera 
Plinthaerus [sic] 
Plinthaerus 
Plinthareus [sic] 
Ptyelus 
Ptyeles [sic] 
Ptyelus 
Pithyelus [sic] 
Ptyelus 
Ptyelus (Ptyelus) 
Ptyelus 
Spinola 1850a: 56 [Listed] 
Spinola 1850a: 56 [gen. n., key] 
Spinola 1850b: 111 [gen. n.] 
Spinola 1850b: 138 Equals Plinthaerus (sic) 
Schaum 1851a: 269 [Described] 
Walker 1851b: 702 [New species from various re¬ 
gions] Equals Aphrophora Germ, (in part.) 
Equals Cercopis Fabr. (in part.) Equals Tetti- 
gonia Fabr. (in part.) Equals Cicada Linne 
(in part.) 
Spinola 1852a: 275 [Comparative note] 
Lacaze-Duthiers 1853a: 111 [Morphology of 9 
genitalia] 
Stal 1854b: 250 [New species from various regions] 
Fairmaire 1855a: 166 [Described, key] 
Mulsant and Rey 1855a: 214 [Comparative note] 
Mulsant and Rey 1855b: 114 [Comparative note] 
Stal 1855a: 96 [New species from Natal] 
Fitch 1856a: 388 [Comparative note] 
Walker 1857a: 96 [Listed] 
Walker 1857b: 166 [Listed] 
Fairmaire and Signoret 1858a: 331 [Catalogued] 
Fairmaire and Signoret 1858b: 327 [Catalogued] 
Walker 1858a: 93 [New species from various regions] 
Walker 1858b: 188 [New species from various re¬ 
gions] 
Walker 1858c: 346 [Catalogued, a new species from 
China] 
Desmarest 1859a: 197 [Comparative note] 
Dohrn 1859a: 68 [List of species] 
Stal 1859b: 286 [Key to species] 
Bellier de la Chavignerie and Signoret 1860a: 740 
[Listed] 
Signoret 1860a: 183 [Listed] 
Signoret 1860b: 740 [Listed] 
Walker 1860a: 18 [Listed] 
Flor 1861a: 114 [Key] :120 [Described, key to sub¬ 
genera] 
Flor 1861a: 122 [Key, key to species from Europe] 
Flor 1861c: 637 [Listed] 
Stal 1862a: 22 [Comparative note] 
Marshall 1864a: 153 [Key] 
