Here's a fairly common micro that should turn up at many of the fixed light trap sites in Somerset. It's Acleris sparsana. The larval foodplants are sycamore and beech. I see about 10 a year here in Taunton, from late September to November. There were 2 last night. Most look like this one - greyish ground colour, some ferruginous markings and a few scattered raised scales.