General comments:
Extremely local resident. Vagrant.

Famously re-discovered after a gap of 30 years at a site near Royston, from where it was known historically. In spite of very many negative night-time searches for larvae, it has probably been there all the time - in very low numbers. All other mapped records are considered to refer to vagrants.

Recorded in 12 (29%) of 41 10k Squares. First Recorded in 1900. Last Recorded in 2022. Additional Stats

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