I've still not got around to purchasing the Moth's of Glamorgan, so I'm not sure what the status of the Double Line moth currently is. I found this whilst going through old photos from last year. It seems to be the only interesting moth I'd taken a photo of.
Caught in Llandaff garden Trap 1st August 2014.
It looks as if it's a Footman, it's a yellow head, pale grey and wingspan around 25-28mm. I cant see any yellow on outer wing edges and doesnt look a very worn specimen. My apologies if its glaringly obvious.