Cimex fuligineus Geoffroy in Fourcroy, 1785: 205. For Cimex No. 32 in Geoffroy, 1762: 451. ST(S): France, nr Paris; MNHN?
Cimex atrofuscus punctatus Goeze, 1778: 266. Unavailable name (not binominal).
Cimex punctulatus Gmelin, 1790: 2185. Objective synonym of fuligineus Geoffroy, 1785.
Pachymerus arenarius Hahn, 1832: 43 (syn. Reuter, 1888a: 195). STS: Germany, Nürnberg); lost.
Rhyparochromus obtusus Curtis, 1836: text to pl. 612 (syn. Douglas & Scott, 1865: 216). STS: Great Britain, Suffolk, Lowestoft; MVMA?
Pachymerus rusticus (non Fallén, 1807): Kolenati, 1845: 83. Misidentification (see J.A. Slater, 1964a: 1014).
Stygnus arenarius var. decipiens Ferrari, 1878: 80. ST(S): Italy, Liguria; lost.
Stygnocoris subglaber (non Puton, 1889): China, 1938b: 15. Misidentification (see J.A. Slater, 1964a: 1016).