Two distinct peaks in records, the main in July/August and the lesser mid-September.
Summer records are usually of ones and twos, greatest numbers of individuls per record recorded in Autumn indicating migrants.
Scottish Status: Common E much scarcer W - stable. UK Status: Common
UK distribution shows long-term increase (cf: Atlas of Britain & Ireland's Larger Moths)
First and last flight dates recorded in Caithness: 30th May to 21st 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 record 2020 to present
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