Wingspan of 15-20 mm. Forewings are blackishbrown suffused with greenish-gold and metallic silver markings. Hindwings are black-brown with a paler anterior margin and pale fringe.
Mature larvae reach 20 mm in length. The body is bluish-green above and pale yellow-green below with a dark line along the back and dark lines on each side. Head is yellowish-brown to black and prothoracic plate is pale yellow to yellowish-brown marked black on each side. Thoracic legs are black.
Oval and flat, ca. 1 x 0.7 mm in size and pale green in colour.
Europe and parts of Asia.
A range of trees including oak, hazel, poplar, sycamore, willow, fir and larch.
Young larvae feed on foliage before hibernating through the winter. They re-emerge in the spring to feed on opening buds and young foliage. Final instars feed on foliage within rolled leaves.