General comments:
Widespread but local resident.

The population of this formerly numerous species crashed from about the 1980s to about 2006, to the extent that it was declared "Endangered" in Hertfordshire in 2008. Around 60 per cent of sites producing the moth (including some that cannot be mapped for want of detail) have not supported it in the 1995 - 2006 period covered by the "Herts Moth Book" (Plant, 2008). However, since about 2010 the number of records has been gradually increasing again and it is possible that whatever caused the decline has passed. Nevertheless, this is still an exceptionally "good" moth to catch in our two counties.

Recorded in 27 (66%) of 41 10k Squares. First Recorded in 1893. Last Recorded in 2023. Additional Stats

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