Eretmocera xanthonota is a moth of the family Scythrididae. It was described by Edward Meyrick in 1910. It is found on Sumba.[1]
The wingspan is 16–17 mm. The forewings are very deep purple with four ochreous-yellow or orange spots, the first on the dorsum at one-fourth of the wing small, the others moderately large, roundish, in the disc at two-fifths, on the tornus, and on the costa at four-fifths respectively. The hindwings are dark purple-fuscous.[2]