310 
General Catalogue of the Homoptera 
[Cercopis spumaria] var. x Fallen 1826a: 19 [Described] 1 Equals 
Cercopis praeusta Fabr. Equals Issus praeustus Fabr. 
Cercopis praeusta Zetterstedt 1828a: 516 [Described] Equals Issus 
praeustus Fabr. Equals Cercopis spumaria var. x Fall. 
Aphr[ophora ] apicalis Herrich-Schaffer 1830a: PI. 21 To Aphrophora 
lineata Fabr. 
[Ptyelus praeustus] Germar 1833a: 179 Equals Issus praeustus 
Jssus [sic] praeustus Herrich-Schaffer 1835a: 106 Equals Cerc[opis 
praeustus] Fabr. 
[Cercopis] praeusta Herrich-Schaffer 1835a: 108 To Pt[yelus] 
spum[arius] 
Aphr[ophora] apicalis Herrich-Schaffer 1835a: 109 To [Ptyelus] 
spum[arius] 
[Ptyelus] apicalis Herrich-Schaffer 1835a: 109 To [Ptyelus] spum[arius] 
[Aphrophora] apicalis Curtis 1837a: 222 [Listed] 3 
[Jassus] praeustus Gistel 1837a: 109 (14) [Listed] 4 
[Aphrophora] apicalis Gimmerthal 1846a: 27 [Listed] 5 
Issus (?) praeustus Walker 1851a: 372 [Catalogued] 1 Equals Cercopis 
praeusta Fabr. 
Cercopis praeusta Walker 1851b: 721 To Ptyelus bifasciatus [nec Linne] 
(?) [error] 
Iassus praeustus Walker 1851b: 721 To Ptyelus bifasciatus [nec Linne] 
(?) [error] 
Ptyelus (?) apicalis Walker 1851b: 723 [Catalogued] 6 Equals Aphro¬ 
phora apicalis Germ. 
Issus (?) praeustus Dohrn 1859a: 64 [Listed] 1 
[Ptyelus ( Ptyelus ) spumarius] praeusta Flor 1861a: 129 [Described] 7 
Equals [Cercopis spumaria] var. x Fall. 
Aphrophora apicalis Flor 1861a: 126, 130 To Ptyelus ( Ptyelus ) spu¬ 
marius Linne 
Issus praeustus Flor 1861a: 130 To Ptyelus (Ptyelus ) spumarius Linne 
[Ptyelus spumarius] var. 11 Marshall 1865f: 57 Nom. nov. pro Issusi 
praeustus Fabr. [Described] 3 
[Ptyelus spumarius] praeusta Oshanin 1870a: 51 [Listed] 
[Ptyelus spumarius] praeusta Oshanin 1871b: 32 [Listed] 8 
[Philaenus spumarius] var. p Sahlberg 1871a: 91 [n. var.] Equals 
[Cercopis spumaria] praeusta Flor Equals [Ptyelus spumarius] > 
praeusta Flor Equals [Cercopis spumaria] var. x Fall. Equals Cer -1 
copis praeusta Fabr. Equals Aphrophora apicalis Germ. 
[Aphrophora] apicalis Sahlberg 1871a: 89 To Ph[ilaenus] spumarius 
Linne 
[Philaenus spumarius] apicalis Fieber 1872a: 7 [Listed] 6 
