General comments:
Widespread resident - extending its range southwards and eastwards.

Nationally, we are informed, there has been a 96 per cent decline in population since 1970; in Hertfordshire we could not provide numerical data, but writing in the 2008 "Herts Moth Book" I said that it appears to have been lost from 83 per cent of formerly occupied sites. Happily, this situation has reversed with the moth staging a remarkable comeback starting in the north-west of Hertfordshire from around 2005 onwards - spreading south and east. The colonisation of Middlesex started in around 2014, with many records that year. At the start of 2023 its is a widespread and not uncommonly encountered resident in most areas of the two counties.

Recorded in 26 (63%) of 41 10k Squares. First Recorded in 1887. Last Recorded in 2024. Additional Stats

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