Pachymerus holosericus Scholtz, 1846: 53. STS: Poland, Silesia; lost.
Pachymerus sabuleti (non Fallén, 1826): Hahn, 1834: 120. Misidentification (see Douglas & Scott, 1865: 200).
Pachymerus spinigerellus Boheman, 1852c: 57 (syn. Stål, 1862b: 218). LT (Péricart, 1994b: 257): male (submacr.), Sweden, Stockholm; NHRS.
Tropistethus ochropterus Fieber, 1861a: 184 (syn. Fieber, 1861a: 388). STS: Europe; lost?
Tropistethus holosericeus Fieber, 1861a: 388 et auct. Unjustified emendation.
Scolopostethus obscurus Garbiglietti, 1869: 117 (syn. Puton, 1886a: 26). ST(S): Italy, nr Torino; MIZT?