Small , mottled moth with long antanae.
No interactions present.
The grousewing sedge could just as easily be grousewing caddis, its a common English name probably used more by trout anglers than anyone. Sedge is the anglers name for caddis in Britain, not so in the States where caddis is used.
I think this is the distinctive Mystacides longicornis, possibly a female as the male has bulbous red eyes.
Lat/Lng: 52.0335, 0.1649
OS grid ref: TL486394