The oak leaftier moth or oak leaf-tying psilocorsis moth (Psilocorsis quercicella) is a species of moth of the Depressariidae family. It is found in the United States, including Florida, Maryland, Massachusetts and Oklahoma. The wingspan is about 14 mm. The larvae feed on Quercus species. They skeletonize the leaves of their host plant. The species overwinters in the pupal stage in leaf litter.