Wingspan of 13-199mm. Forewings with hook like tips, dark reddish brown to ochreous with dark markings. Hind wings pale grey, darker in the female.
Up to 144mm long. Greyish green or yellowish green with pale pinacula. Prothoracic plate reddish brown or green. Anal comb yellowish & thoracic legs black.
Oval, yellowish-green deposited or in small clusters on the bark of trunks and branches.
Central and Northern Europe and North America.
Trees & shrubs, including apple (Malus), pear (Pyrus) and cherry (Prunus). Leaves, flowers and young shoots are all attacked.
Larvae feed in the protection of webbed leaves, usually at tups of young shoots. Young leaf tissue is distorted.
Generations: Generations: 1