Crocidosema marcidellum is a moth of the family Tortricidae. It was first described by Lord Walsingham in 1907. It is endemic to the Hawaiian islands of Kauai and Oahu.
The wingspan ranges up to 20 mm.
The larvae feed on the fruit of Hibiscus arnottianus and the petiole of Abutilon sandwicense.
The pupa is about 7 mm long and yellowish brown.