Prionapteryx nebulifera, the clouded veneer moth, is a moth in the Crambidae family. It was described by Stephens in 1834. It is found in North America, where it has been recorded from Florida, Georgia, Maryland, Michigan, New Hampshire, Ontario, South Carolina and Wisconsin. Adults have been recorded on wing from May to August. The larvae feed on Ericaceae species, including Leiophyllum buxifolium and probably Gaylussacia species. They live in underground retreats and build tubes of sand and silk up to the leaves of their host plant. Pupation takes place in the larval retreat.