Phyllonorycter mariaeella is a moth of the family Gracillariidae. It is known from Canada (Québec and Ontario) and the United States (Missouri and Michigan).[1]
The wingspan is 8-8.5 mm.
The larvae feed on Symphoricarpos species, including Symphoricarpos orbiculatus, Symphoricarpos symphoricarpos and Symphoricarpos vulgaris. They mine the leaves of their host plant.