Fen Mason-wasp Odynerus simillimus

Odynerus simillimus has been recorded from marshy areas in East Anglia, but until its rediscovery in 1986 (Archer, 1989) it was considered to be extinct in Britain. Image: Nick Goodrum (Flickr).

Find out more: iNaturalist, Bees, Wasps and Ants Recording Society