Nemicolopterus is a genus of pterodactyloid pterosaur described in 2008. N. crypticus is the type species and sole species known. The generic name "Nemicolopterus" comes from the following Greek words: "Nemos" meaning "forest", "ikolos" meaning "dweller", and "pteros" meaning "wing". The specific name crypticus is from "kryptos", meaning "hidden". Thus "Nemicolopterus crypticus" means "Hidden flying forest dweller". It lived in the Jehol Biota 120 million years ago.