Tasgius melanarius
I found this by torchlight on a concrete bridge over a disused railway. The identification was fairly straightforward using Lott.
, Cathedral Meadows, 24-Jan-20 (A) (1).jpg)
, Cathedral Meadows, 24-Jan-20 (A) (2).jpg)
, Cathedral Meadows, 24-Jan-20 (A) (3).jpg)
, Cathedral Meadows, 24-Jan-20 (A) (4).jpg)
, Cathedral Meadows, 24-Jan-20 (A) (11).jpg)
, Cathedral Meadows, 24-Jan-20 (A) (9).jpg)
, Cathedral Meadows, 24-Jan-20 (A) (10).jpg)
male Tasgius melanarius showing mandible, pronotum (faded) and aedeagus (2 views), North Elmham Cathedral Meadows (Norfolk, UK), 24th January 2020