I believe this is an Empid and thought with the banded legs it would be easy to identify, but I am struggling with it.
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Certainly not an Empid, which have far shorter antennae. Looks like a Mosquito to me, but not a family I have looked into, so shall leave it to someone else to give a species.
My Flickr photos...
Lat/Lng: 52.9623, -1.4779
OS grid ref: SK351406
Large country park much of which is a designated local nature reserve.