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ID is for the second and third pictures, which show a male (eyes touching) Melanostoma scalare. The first picture is a female (eyes separated), and harder to put to species, though could be the same.
My Flickr photos...
Many thanks indeed for identifying this Ian. I've deleted the photo of the female and will repost it as a Melanostoma sp.
Lat/Lng: 57.16, -2.2
OS grid ref: NJ880076