Rhyparochromus erosus Walker, 1872? 113. HT: female, unknown locality, BMNH. Suppressed by the International Commission on Zoological Nomenclature (Opinion 2433, 2019).
Metochus abbreviatus Scott, 1874a: 434. LT (Scudder, 1967c: 255): male, Japan; BMNH.
Dieuches kreyenbergi Breddin, 1906a: 328 (syn. Zheng & Zou, 1981a: 202, suspected; Kondorosy et al., 2016: 152). LT (Gaedike, 1971: 117; Péricart, 1999d: 81): male, China, Pinghsiang [= Guanxi, Pingxiang]; DEIC.
Metochus holsti Distant, 1918b: 265 (syn. Kondorosy et al., 2016: 152). LT (Scudder, 1967c: 268): male, Japan, Tsushima Is.; BMNH.