Ophyiulus pilosus
The sickle-shaped forelegs of this male are a distinctive character of males in this genus.
male Ophyiulus pilosus showing tail and forelegs, North Elmham (Norfolk, UK), 15th or 16th April 2022
This individual, a female I think, was in the same pitfall trap as the male above.
Ophyiulus pilosus, North Elmham (Norfolk, UK), 15th or 16th April 2022