Monanthia unicostata Mulsant & Rey, 1852: 134. LT (Péricart, 1981b: 225): male, France, "Gall. mer." [= southern France]; MZHF.
Monanthia aliena Fieber, 1861a: 124 (syn. Puton, 1875a: 31). STS: Syria and Turkey.
Monosteira buccata Horváth, 1902a: 600 (downgraded to var. of Monanthia unicostata by Horváth, 1906a: 106; syn. Péricart, 1981b: 229). HT: male, Spain, Ciudad Real, Pozuelo de Calatrava; HNHM.
Monostira pardoi Wagner, 1961a: 76 (syn. Péricart, 1981b: 229). HT: male, Morocco, Granja del Muluya, Kebdana; ZMUH.
Monostira ribesi Wagner, 1961a: 77 (syn. Péricart, 1981b: 229). HT: male, Morocco, Tafersit [not Spain, Valldoreix, nr Barcelona, as given in the original description]; ZMUH.
Monostira ribesi var. nigra Wagner, 1961a: 79 (syn. Péricart, 1981b: 229). HT: male, Spain, Catalonia, Valldoreix; coll. Ribes, Barcelona, Spain.
Monostira ribesi alni Wagner, 1961a: 79 (syn. Péricart, 1981b: 229). HT: male, Spain, Algeciras, Cobre; MZHF.