Last modified: Nov. 7, 2024, 5:25 p.m.
Status insufficiently known due to the difficulty of different mines on the food plant, but it is assumed to be a very rare species.
Native
The egg is laid on the upper side close to the edge of the leaf.
The larva is yellow-colored and can be found in June-July and September-October.
The mine starts with a relatively short corridor that widens moderately. Usually, the initial corridor runs along the leaf edge. In the initial corridor, the frass lies in a narrow central line, later it lies more in a wide band of arcs or lies granularly in a central line. The sides of the mine always remain free of frass.
The cocoon is reddish-brown.
The adults fly in two generations per year from late May to September.
The larva mines different species of Quercus like Q. petraea, Q. robur and Q. pubescens.