Two records of larva, one of female laying eggs and one of recently emerged adult (photo below) indicate a resident population probably sustained by immigrants
Photograph of larva © Angus McBay
Scottish Status: Common, also immigrant - stable. UK Status: Common
UK distribution trend shows a long-term modest increase (cf: Atlas of Britain & Ireland's Larger Moths)
First and last flight times recorded in Caithness: 24th April to 13th December. One early record: 7th April
Map: blue dots last record 2000 to 2009 red dots last record 2010 to 2019
green dots last record 2020 to present
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