38 
General Catalogue of the Homoptera 
Distant 1909i: 81 [List of species from Ruwenzori] 
Distant 1909j: 174 [Catalogued] Equals Philaenus 
Stal [in part.] Equals Amarusa Walk, [error] 
Schmidt 1909c: 243 [Catalogued] 
Lambertie 1910a: 86 Equals Philaenus Stal [in part.] 
Lefroy 1910a: 235 [Formation of spittle] 
Licent 1911a: 48 [Morphology of the Malpighian 
tubes] 
Lallemand 1912a: 19 [Key] :30 [Described, cata¬ 
logued] 
Ampleus [nom. nud.] Licent 1912a: 28 [Morphology of the digestive sys¬ 
tem] :44 [Physiology of digestive system] 
Ptyelus Licent 1912a: 11 Equals Philaenus Stal [in part.] 
:16, 81 [Morphology of digestive system] :41, 
46, 63, 70, 74, 77, 78, 97, 115 [Physiology of di¬ 
gestive system] :138 [Ecology] 
Osborn 1912a: 27 [Predators] 
Schumacher 1912a: 322 [New varieties from the 
Cameroons] 
Schumacher 1915a: 87 [Listed] 
Schumacher 1915b: 113 [Listed] 
Distant 1916a: 186 [Listed] 
Matsumura 1916b: 415 [Key] 
Deletang 1917a: 264 [Key] :265 [Described] 
Fletcher 1917d: 252 [Economics] 
Jacobi 1917a: 521 [Zoogeography] 
Matsumura 1917b: 415 [Key] 
Schmidt 1920k: 115 [Catalogued] 
Buchner 1921a: 288 [Symbionts] 
Jacobi 1921a: 5 Equals Plinthacrus Spin. :8 
[Described] 
Buchner 1922a: 39, 43, 45 [Symbiosis] 
Melichar 1922a: 307 [Listed] 
Deletang 1923a: 584 [Key] 
Lallemand 1924b: 201 [Listed] 
Handlirsch 1925a: 1114 [Listed] 
Remy-Perrier 1926a: 75 [Key] :76 [Key to species] 
Equals Philaenus Stal [in part.] 
Perrier 1927a: 1318 [Described] 
Box 1929a: 9 [Notes] :12 [Listed] 
Sherborn 1929d: 5211 [Catalogued] 
Weber 1930a: 243, 247 [Listed] 
