Corizus viridicatus Uhler, 1872: 404. STS: USA (Colorado, Nebraska, Dakota); USNM (1 ST: Colorado).
Rhopalus (Stictopleurus) pallidus J. Sahlberg, 1878a: 17 (syn. Göllner-Scheiding, 1975: 29, with nysioides). LT (Göllner-Scheiding, 1975: 29, as HT; V.G. Putshkov, 1986: 81): female, Russia (ES), Krasnoyarsk; NHRS.
Rhopalus (Stictopleurus) nysioides Reuter, 1891f: 178 (syn. V.G. Putshkov, 1978f: 9, 12). LT (Göllner-Scheiding, 1975: 29, as HT): male, Russia (ES), Krasnoyarsk Terr., Verkhnesuetuk; MZHF.
Corizus novaeboracensis var. pallidus Baker, 1908: 243 (junior secondary homonym of Rhopalus pallidus J. Sahlberg, 1878a; syn. Harris, 1944: 103). STS: USA, Colorado to Nevada; USNM.