Ordrupia macroctenis is a moth in the Copromorphidae family. It was described by Meyrick in 1926. It is found in Peru. The wingspan is 34–37 mm. The forewings are violet-fuscous, darker in females, lighter and ochreous-tinged towards the dorsum anteriorly. There are cloudy dark fuscous dots in the disc at one-third and on the lower angle of the cell, and a more obscure mark on the upper angle. The hindwings are pale greyish.