938 GENERAL CATALOGUE OF THE HOMOPTERA 



China 1950a: 247 To Typhlocyha Germ, 

 [error] 



Young and Christian 1952a: 101 To 

 Typhlocyha Germ, [error] 



Christian 1953a: 1104 [Listed] : 1111, 

 1112 [Biology] : 1115 [Key] : 1147 

 [Comparative notes] : 1187 [Described, 

 food plants, review of species, cata- 

 logued] 



Ishihara 1953b: 31 To Typhlocyha Germ, 

 [error] 



Brues, Melander, and Carpenter 1954a : 147 

 [Listed] 



Christian 1954a: 26 [A new species from 

 the United States and Ontario] 



Dlabola 1954a : 186 To Typhlocyha Germ, 

 [error] 



Esaki and Ito 1954a: 227 To Typhlocyha 

 Germ, [error] 



acericola Christian 



Empoa acericola Christian 1953a: 1200 [n. sp., food plants, 

 comparative notes] 1-2' 3 ; ii89 [Notes] : 1191 [Key, food 

 plants] 

 Localities : ^ Kansas. ^ Iowa. ^ Wisconsin. 



albicans Walsh 



Empoa alhicans Walsh 1862a: 149 [n. sp.] 

 Empoa alhicans Walsh 1864a: 316 [n. sp.] 

 [Typhlocyha] alhicans Woodworth 1889a: 214 [Notes] ^ 

 Typhlocyha alhicans Van Duzee 1894a: 313 [Catalogued] ^ 



Equals Empoa alhicans Walsh 

 [Typhlocyha] albicans Gillette 1898a: 751 [Key] 

 [Empoa] alhicans Van Duzee 1916a: 77 [Listed]^ 

 Empoa alhicans Van Duzee 1917b: 711 [Catalogued]'' 



Equals Typhlocyha [alhicans] Woodw. 

 Typhlocyha cymha McAtee 1918b: 360 [n. sp.]^ 

 Typhlocyha cimha [sic] Gibson 1919a: 122 (26) [Listed]* 

 Typhlocyha querci grata McAtee 1919b: 225, 226 [n. var., 



key]* 

 Empoa alhicans Severm 1921c: 23 [Listed]^ 

 T[yphlocyha] tricincta cymhium [sic] Gentner 1925a: 13 



[Economics] ^ 



