Enicmus transversus

Keying things based on subtle differences in how transverse the pronotum is never fills me with confidence but I think this has to be right. I dissected it in the hope of finding an aedeagus to increase my confidence but it seems it was a female.

male Enicmus transversus showing head & pronotum, prosternal keel and elytron, North Elmham (Norfolk, UK), 24th April 2022