442 
General Catalogue of the Homoptera 
Jacobi 1921a: 7 To Cercopis Fabr. [error] :26 
[Comparative note] 
Buchner 1922a: 39, 44, 45 [Symbiosis] 
Haupt 1922a: 20 [Key] :21 [Key to species from 
Europe] 
MacGillavry 1922c: xliii [Listed] 
Myers 1922a: 9 To Cercopis [error] 
Sherborn 1923b: 392 [Catalogued] 
Stearns 1923a: 206 [Listed] :211 [Key, described, 
key to species] :221 [Comparative note] 
Comstock 1924a: 408 [Notes] 
Hofmanner 1924a: 46 [List of species from Switzer¬ 
land] 
Lindberg 1924a: 41 [List of species] 
Schmidt 1924e: 43, 44 [Comparative notes] 
Buchner 1925a: 117, 120 [Symbionts] 
Chapin 1925a: 30 [Predators] 
Cockerell 1925a: 8, 9 [Comparative notes] 
Handlirsch 1925a: 1114 Equals Cercopis Fabr. (in 
part.) 
Haupt 1925a: 11 [List of species from Bavaria] 
Imms 1925a: 356 [Listed] 
Kupka 1925a: 104 [Listed] 
Metcalf and Bruner 1925a: 102 [Comparative note] 
Handlirsch 1926b: 447; Fig. 524 [Morphology of 
genitalia] 
Ivanov 1926a: 210 [Morphology of reproductive 
system] 
Kuhn 1926a: 536 [Morphology of compound eyes] 
Rambousek 1926a: 375 [Notes] 
Remy-Perrier 1926a: 75 [Key] :76 [Notes, key to 
species] 
Schulze, Kiikenthal, and Heider 1926b: 231 [Cat¬ 
alogued] 
Depdolla 1927a: 1041 [Oogenesis] 
Johnson 1927a: 37 [List of species from Maine] 
Leonardi 1927a: 27 [List of species from Italy] 
Perrier 1927a: 1318 [Described, comparative note] 
Poisson and Poisson 1927a: 134 [Listed] 
Filipieff 1928a: 148 [Key, key to species from Russia] 
Handlirsch 1928a: 1275; Fig. 127 [Morphology of cf 
genitalia illustrated] 
