#1
At the time I identified this as
Lasiomma seminitidum but Martin Harvey pointed out that it has plumose antennae and on closer inspection of the photos it's clearly something else.
https://www.bioim...167978.htm
Male, swept off fading male Grey Sallow catkins, 16 Apr 2016, Moor Copse BBOWT Reserve, Berks, UK.
I've looked through Mike Ackland's genitalia drawings but can't see a match.
Many thanks for any pointers.