Rhyparochromus convivus Stål, 1858b: 180. STS: male, female, Russia (ES), Irkutsk; lost.
Pachymerus distinguendus Flor, 1860: 266 (syn. V.G. Putshkov, 1969a: 294). STS: Latvia (Hainasch [= Ainazi]) and Estonia (Orrenhof [= Orajoe]); LT (Péricart, 1998c: 9): male, IZBE.
Trapezonotus distinctus Douglas & Scott in Scott, 1863: 145 (syn. Reuter, 1875k: 547, with distinguendus). HT: Great Britain, Isle of Wight, Ventnor; lost.
Peritrechus saskatchewanensis Barber, 1918: 60 (syn. Scudder, 1999: 268). HT: female, Canada, Saskatchewan, Oxbow; USNM.