Phyllonorycter rileyella is a moth of the family Gracillariidae. It is known from Illinois, Missouri, Texas, Florida, Maine and Ohio in the United States.
The wingspan is 6âÂÂ8 mm.
The larvae feed on Quercus species, including Quercus imbricaria, Quercus obtusifolia, Quercus rubra and Quercus stellata. They mine the leaves of their host plant.