Scottish Status: Common - stable. UK Status: Common
UK distribution trend shows a significant recent increase but little overall change since 1970 (cf: Atlas of Britain & Ireland's Larger Moths)
Upper photograph show typical form. Lower photograph shows extreme variation lacking black pigmentation
First and last flight times recorded in Caithness: 25th June to 2nd October
MAP: black dots last record pre 2000 blue dots last record 2000 to 2009
red dots last record 2010 to 2019 green dots last recod 2020 to present
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