Wingspan 36-46 mm. Distinctively marked species with unusually square markings on the wings.
Frequenting mainly wooded habitats.
The single generation flies in June and July and visits light and sugar, as well as certain flowers.
The polyphagous caterpillars hibernate when quite small and feed in spring on various trees and shrubs.
Occurs fairly commonly throughout the British Isles. In a recent survey to determine the status of all macro moths in Britain this species was classified as common.
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