Kleidocerys Stephens, 1829a: 342. Type species by subsequent designation (China, 1943: 237): Lygaeus resedae Panzer, 1797.
Kleidocerus: Burmeister, 1835: 292, 306. Incorrect subsequent spelling.
Clidoceras Agassiz, 1847: 89. Unjustified emendation.
Ischnorhynchus Fieber, 1860b: 51; 1861a: 199 (syn. Horváth, 1875b: 27). Type species by subsequent designation (Oshanin, 1912: 29): Lygaeus resedae Panzer, 1797.
Lyctus Flor, 1860: 294 (as subgenus of Cymus; junior homonym of Lyctus Fabricius, 1805, Coleoptera). Type species by monotypy: Lygaeus resedae Panzer, 1797.
Clidocerus: Fairmaire, 1884: 54. Incorrect subsequent spelling.
Kleydocerus: Signoret, 1885: 67. Incorrect subsequent spelling.