Last modified: April 1, 2022, 6:33 p.m.
Pupa light brown in a slight spinning.
Young larvae mine the stem of a leaf. Later they make a gallery in young twigs eating the soft centre. This activity causes the terminal leaves to wilt, thus indicating the presence of a larva.
Pupation in a slight spinning amongst debris on the ground.
One generation a year: from mid June till the end of August.
Heathland and woodland.