524 
General Catalogue of the Homoptera 
Aphrophora alni Riley 1931a: 253; 1 text fig. [Illustrated] 
Aphrophora alni Weber 1931a: 106; Fig. 105b [Morphology, illus¬ 
trated] 
Aphrophora alni Wnukowsky 1931a: 11 [Listed] 81 
A [phrophora] alni Enderlein 1932a: 193 [Listed] 
Aphrophora alni Kusnetzov 1932b: 231 [Listed] 
Aphrophora alni Matsumura 1932b: 298 [Economics] 74 
Aphrophora alni Peus 1932a: 113 [Ecology] 2 
Aphrophora alni Kato 1933b: PL 38, Fig. 6 [Notes, illustrated] 74 
Aphrophora alni Pawlik 1933a: 234 (1) [Listed] 
Aphrophora alni Regnier 1933a: 646 [Economics] 6 
Aphrophora alni Regnier 1933b: 651 [Food plants] 
[Aphrophora] bifasciata [nec Linne] Acloque 1934a: 400 [Key] 6 
Aphrophora spumaria [nec Linne] Brindley 1934a: 69 Equals A[phro- 
phora] alni Fall. 
Aphrophora alni Della Beffa 1934a: 730 [Notes, food plants] 3 
Aphrophora alni Kahle 1934b: 118; 1 fig. [Notes, illustrated] 
Cercopis alni Metcalf and Horton 1934a: 369 To [Cercopis spumaria 
Linne] [error] 
Aphrophora alni Metcalf and Horton 1934a: 369 To Cercopis spumaria 
Linne (error) :370 Equals Cercopis spumarius Linne [error] :411 
[Key] 89 
[Aphrophora] bifasciata [nec Linne] Metcalf and Horton 1934a: 370 
Equals Aphrophora spumaria Germ, (nec Linne) Equals Aphro¬ 
phora alni Fall. 
[Aphrophora] spumaria Metcalf and Horton 1934a: 370 Equals 
[Aphrophora] alni Fall. 
Aphrophora spumaria [nec Linne] Murray 1934a: 263 [Ecology] 25 
Equals [Aphrophora] alni Fall. 
A [phrophora] alni [Nakayama] 1934b: 53 [Notes] 
A [phrophora] alni Ossiannilsson 1934a: 131 [Listed] 1 
Aphrophora alni Silvestri 1934a: 330; Fig. 294 [Described, illus¬ 
trated] 3, 89 Equals Cercopis spumaria [nec Linne] 
Aphrophora alni Thornley 1934a: 76 [Listed] 7 
Aphrophora alni Werner 1934a: 383 [Listed] 47 
Aphrophora alni Halbert 1935a: 308 [Listed] 62 :311 [Notes, ecology] 62 
[Aphrophora] alni Haupt 1935a: 156 [Key] 2, 37 - 100 
[Aphrophora] spumaria [nec Linne] Karl 1935a: 135 [Listed] 113 Equals 
[Aphrophora] alni Fall. 
Aphrophora alni Lameere 1935a: 398; Fig. 420 [Venation described, 
illustrated] 
[Aphrophora] alni Rapp 1935a: 42 To Aphrophora spumaria Linne 
[error] 
