Insecta , Lepidoptera , Coleophoridae . The wing tips are pointed, the fore wings are shiny dark grey-brown, the hind wings, dark grey with a long fringe. The abdominal prolegs are greatly reduced. They are usually laid in clusters of 5 to 10 eggs along the veins on the underside of wild woody plants. The female lays a maximum of 200 eggs, singly or in clusters on the underside of leaves.
Embryonic development lasts approximately two weeks.
They start to feed immediately. At first, they mine the leaf and later, attack it from the edges for a few days. Before the leaves fall in autumn, the caterpillars construct a hibernaculum using a strip of the leaf epidermis and silk threads which they spin. The caterpillar hibernates in this case near the buds, on the fruit or in the fork of branches. In spring the hibernaculum is enlarged and becomes cone-shaped.