The larvae feed on Quercus dalechamii, Quercus petraea and Quercus robur. They mine the leaves of their host plant. They create a large, lower-surface tentiform mine, usually between two side veins. The lower epidermis has one sharp fold. The frass is deposited in a corner of the mine and covered by some spinning. There may be several mines in a single, strongly contracted leaf. The pupa is brownish black and is made in a whitish cocoon.
