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  • wall brown

wall brown

Pictured: wall brown, Lasiommata megera

Notes from Jenyns: Common everywhere.

200-year trend in Cambridgeshire: Decline.

Modern records

This once common species is now nationally a cause for concern, with declines being most dramatic in southern England. Far fewer can be seen today than in Jenyns’ time, especially in Cambridgeshire, and a national research project is trying to better understand the reasons for its downward trend. Climate change appears to be a key factor, as the species is still thriving and expanding its range in the north of Britain.

National records map

Wall brown national records map: