Oreta suffusa is a moth in the Drepanidae family. It was described by Walker in 1855. It is found in Sri Lanka and southern India. Adults are lilac fawn colour, the wings with numerous greyish spots, yellowish towards the base and along the exterior border. The forewings have a darker middle part, bounded on the inside by an undulating grey band and on the outside by a more oblique and straight yellow band. There is a blackish spot at the interior angle. The hindwings have a very narrow darker middle part.