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I've started trying to make sense of all the psychodids on iSpot (see http://www.ispotnature.org/node/373860) - but it's going to be tricky. This looks similar to a couple of others that I've got as an unidentified genus, but I'm thinking that a Pericoma species might be most plausible...
Good luck with that, rather you than me!
Gardening for Wildlife
Lat/Lng: 54.904664242044, -5.1195645332336
OS grid ref: NX000611