Notes: Local, south-western England, south-eastern England, eastern England and north-western England. Wingspan 40-48mm. Nocturnal; mid-May to early July. Frequents woodland, thickets, copses and gardens. Larva late June to early Septembe r, over-wintering as a pupa. Larva feeds on Alder, Silver Birch and Downy Birch.

Flightime guide
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