Cercopoidea—Aphrophoridae 
33 
Type P[tyelus] jlavescens Distant 1908c: 310 
Pseudotype P[tyelus] spumarius Distant 1908g: 87 
Type P[tyelus] flavescens Distant 1909j: 174 
Pseudotype Ptyelus spumarius Schmidt 1909c: 243 
Pseudotype Ptyelus spumarius Lallemand 1912a: 30 
Type Ptyelus flavescens Schmidt 1920k: 115 
Type Ptyelus flavescens Jacobi 1921a: 5 
Type Cercopis flavescens Metcalf and Horton 1934a: 370 
Type Ptyelus flavescens Lallemand 1937a: 252 
Type Ptyelus ferrumequinum China 1951c: 279 
Pseudotype Cicada spumaria Synave 1954b: 882 
Type P[tyelus\ ferrumequinum Synave 1954b: 882 
[Plinthacrus Spinola] 
[Logotype Plinthacrus delegorguei Spinola] 
Ptyelus Le Peletier and Serville 1825a: 608 [gen. n.] :602 
[Key] :604 [Comparative note] 
Ptyela Germar 1833a: 179 [Key] 
Herrich-Schaffer 1835a: 40 [Key] :67 [Key to species 
from Europe] :109 [Synonomy of species] 
Equals Cercopis Fabr. [in part.] Equals Aphro- 
phora Germ, [in part.] 
Gistel 1837a: 108 (13) [List of species from Bavaria] 
Equals Aphrophora Germ, [in part.] 
von Siebold 1839a: 445 [List of species from Prussia] 
Herrich-Schaffer 1840a: 383 [List of species from 
Bavaria] 
Westwood 1840b: 116 [Described] Equals Tettigonia 
Oliv. [in part.] 
Agassiz, Erichson and Germar 1842a: 17 [Listed] 
Ptyelus Amyot and Serville 1843a: 566 [Described] Equals 
Cicada Linne [in part.] Equals Cercopis Blanch, 
[in part.] 
Amyot 1847a: 184 [Listed] 
Blanchard 1847d: 623 [Listed] 
Amyot 1848a: 380 [Listed] 
Ptyela Agassiz 1848a: 915 [Listed] 
Gistel 1848a: 150 [Described] Equals Cercopis 
[in part.] 
Ptyelus Lucas 1849a: 107 Equals Cicada Linne [in part.] 
Equals Cercopis Blanch, [in part.] 
