Phyllonorycter obscuricostella is a moth of the family Gracillariidae. It is known from Connecticut, Illinois, Kentucky, Pennsylvania, Maine and New York in the United States.Global Taxonomic Database of Gracillariidae (Lepidoptera)
The wingspan is 6-6.5 mm.
The larvae feed on Ostrya species, including Ostrya virginiana and Ostrya virginica. They mine the leaves of their host plant.
References
External links mothphotographersgroup Phyllonorycter at microleps.org