The Scarce Umber is one of few I've seen at mv light. David used to catch large numbers in his portable actinics.
The tortrix is Acleris umbrana. It was extremely nice looking, unfortunately the photo is every bit as ropey. This is a quite a rare species nationally but I suspect it is being under-recorded in south-east Somerset. Please keep an eye out for moths like this with a black basal streak. There are similar forms of Acleris hastiana and I would be happy to examine any specimens.
My thanks to John Langmaid and Bob Heckford for assistance with the identification of this individual.