The second photo shows the pale form which is unusual in Caithness
Scottish Status: Common - stable. UK Status: Common
UK trends show major long-tern decline in abundance and a modest increase in distribution (cf: Atlas of Britain & Ireland's Larger Moths)
First and last flight dates recorded in Caithness: 3rd May to 16th August (Occasional records into September)
MAP: black dots last record pre 2000 red dots last record 2010 to 2019
green dots last record 2020 to present
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