Bolitobius castaneus
This was swept from Broom and was identified using Mike Hackston's keys. My records say it was about 6mm long.
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Bolitobius castaneus, North Elmham Cathedral Meadows (Norfolk, UK), 8th April 2019
This one was in a pitfall trap (in propylene glycol, so no live photos). I recognised it as being Tachyporinae and keyed it using Hackston again.
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Bolitobius castaneus showing antennae, labial (and maxillary) palps (from side), elytra suture, first segment of hind tarsus (underside), front tarsi, tip of abdomen from above, apical sternites and aedeagus, Wendling Beck Environment Project (Norfolk, UK), 29th to 31st March 2024