The Banded Demon (Notocrypta waigensis) is a species of butterfly of the Hesperiidae family. It is found in Indonesia (Irian Jaya, Aru Islands, Kei Islands), New Guinea and Queensland. The wingspan is about 40 millimetres (1.6 in). The larvae feed on various Zingiberaceae species, including Alpinia caerulea and Hornstedtia scottiana. The larvae live in a tube made out of a rolled leaf joined by silk at the edges.