Nye (1975) stated:-
Phalaena (Noctua) cardui Hübner, 1790, is a junior primary homonym of Phalaena (Tortrix) cardui Ström, 1783, Nye Saml. K. dansk. Vid. Selsk. Skr. 2:87. There is no objective replacement name but a subspecific name Heliothis cardui purpurata Staudinger, 1901, in Staudinger & Rebel, Cat. Lepid. palaearct. Faunengeb. (1):221, is available and could be used as a subjective replacement name, i.e. Melicleptria purpurata (Staudinger).
The senior homonym Phalaena cardui Ström has remained unused for over 150 years, probably ever since it was published. The original description does not really fit any known species, and no Ström types are extant. In my opinion in this case the Int. Commn zool. Nom. should be asked to suppress the senior homonym under the Code, Article 79, for the purposes both of the Law of Priority and of the Law of Homonymy.
Poole (1989) included MELICLEPTRIA Hübner, 1823; ANTHOECIA Boisduval, 1840; ALARIA Duncan & Westwood, 1841 (precoccupied); TRYPANA Guenée, 1841; ORIA Guenée, 1852 (preoccupied); RHODOPHORA Guenée, 1852; TAMILA Guenée, 1852; EULEUCYPTERA Grote, 1865; LYGRANTHOECIA Grote & Robinson, 1873; TRICOPIS Grote, 1874; ADONISEA Grote, 1875; HELIOPHANA Grote, 1875; OXYLOS Grote, 1875; PIPPONA Grote, 1875; PORRIMA Grote, 1877; RHODODIPSA Grote, 1877; BESSULA Grote, 1881; DASYSPOUDAEA Smith, 1883 (as DASYSPOUDOEA on page 892); TRILEUCA Grote, 1883; PSEUDOTAMILA Smith, 1893; CANIDIA Grote, 1890; EUPANYCHIS Grote, 1890; TRICHOSELLUS Grote, 1890; THYREION Smith, 1891; INCITA Grote, 1895; PALADA Smith, 1900; and CHLOROCLEPTRIA Hampson, 1903 as junior synonyms of SCHINIA Hübner, 1818.
MELICLEPTRIA Hübner,  1816 was treated as a valid genus, revalidated by Beck, 1996, Neue Entomologische Nachrichten 36 : 44.
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