Cimex vagabundus Linnaeus, 1758: 450. ST(S): Europe (West).
Cimex squalidus Gmelin, 1790: 2192 (syn. Reuter, 1888a: 357). ST(S): Europe.
Ploearia erratica (non Fallén, 1807): R.F. Sahlberg, 1848: 149. Misidentification (see Fieber, 1861: 150).
Ploearia pilosa Fieber, 1861: 150 (syn. Puton, 1880a: 164, as var.). ST(S): France, La Teste (see Mulsant & Rey, 1873: 182).
Ploiariodes hirtipes N. Banks, 1912: 97 (syn. McAtee & Malloch, 1922: 95, with Ploiariodes vagabunda var. pilosa). HT: female, USA, Vermont, Brattleboro; Natural History Museum, Boston, USA.
Ploiariola canadensis Parshley, 1919: 25 (syn. McAtee & Malloch, 1922: 95). HT: female, USA, Victoria; National Collection of Insects, Ottawa, Canada.