Ethmia dodecea is a moth of the family Depressariidae. It is found in Europe, Asia Minor, Iran, the south-western, southern and eastern European parts of Russia, the Caucasus, Transcaucasia, western Kazakhstan and Siberia.

Its wingspan is 17–21 mm (0.67–0.83 in). The moth flies from May to August depending on the location.

The larvae feed on Lithospermum officinale.

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