Chalcosia is a genus of moths in the family Zygaenidae.

Species Chalcosia affinis (Guérin-Méneville, 1843) Chalcosia alpherakyi Leech, 1898 Chalcosia coliadoides Chalcosia contradicta Inoue, 1991 Chalcosia flavicollis Jordan, 1907 Chalcosia formosana Matsumura, 1911 Chalcosia nympha Moore, 1878 Chalcosia pectinicornis (Linnaeus, 1758) Chalcosia pretiosa Walker, Chalcosia venosa Walker, 1854 Chalcosia zehma Herrich-Schäffer,

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