Nimbus obliteratus
Formerly placed withini the genus Aphodius and then known as Aphodius obliteratus.
This came to LED lights. I would have identified it using Mike Hackston's keys, but I've just tried keying it out using Duff (from the photos and without the specimen) and I think it leads to obliteratus there too. This is a scarcer species than Nimbus contaminatus which I haven't encountered yet.
Nimbus obliteratus, North Elmham Cathedral Meadows (Norfolk, UK), 12th October 2019