Bradycellus harpalinus
Apparently the most-frequently recorded Bradycellus in Norfolk, though far outnumbered by Bradycellus verbasci in my garden moth trap. They differ most clearly from verbasci by having more rounded basal corners to the pronotum (though other characters must be checked to eliminate other species). Mostly they stand out from verbasci in being darker, but I'm not sure how consistent this is.
2x Bradycellus harpalinus, North Elmham Cathedral Meadows (Norfolk, UK), 18th July 2020 (first two photos are the same beetle)
male Bradycellus harpalinus showing aedeagus in different orientations and close-up, North Elmham (Norfolk, UK), 3rd August 2018
Bradycellus harpalinus, Wendling Beck Environment Project (Norfolk, UK), 20th August 2021
Bradycellus harpalinus, North Elmham (Norfolk, UK), 10th August 2021
Bradycellus harpalinus, North Elmham (Norfolk, UK), 13th October 2018
Bradycellus harpalinus, North Elmham (Norfolk, UK), 18th July 2021
Bradycellus harpalinus, North Elmham (Norfolk, UK), 30th July 2022