These two large pugs came to the house lights (Loosley Row, Bucks) on the 19th July. I keep going back to them but cannot come to a satisfactory ID. I don't think they're Freyer's as the discal spot is normally touching or very close to the fascia beyond it in that species, whereas here there is a noticable space between the two.
Best guess at the moment is Pimpinel . . .