Cimex equestris Linnaeus, 1758: 447. LT (Péricart, 1999d: 80): female!, Sweden; LSUK..
Cimex speciosus Poda, 1761: 59 (syn. Fabricius, 1775: 718). ST(S): Austria, Graecium [= Graz]; lost.
Cimex hyosciami (non Linnaeus, 1758): Sulzer, 1761: 75. Misidentification (see. Reuter, 1888a: 180). ST(S)?
Cimex punctumalbum Pollich, 1781: 264 (syn. Reuter, 1888a: 180). ST(S): Germany, Weilburg; lost.
Lygaeus equestris var. lactans Horváth, 1899f: 283. LT (Péricart, 1996b: 154): female, Algeria, Philippeville [= Skikda]; HNHM.
?Spilostethus equestris sicilianus Wagner, 1955a: 101 (syn. Tamanini, 1981: 84, suspected). HT: male, Italy, Sicily, Mt Etna; ZMUH.