Ghost swift

Not a great picture (but not bad for a photo taken with a phone in less than promising light, and worth biggifying) - but a ninteresting moff so i thought i'd share it with you.
This is a female ghost swift moth - the male has pure white wings.
Found her in the toilet block of the small campsite on our friends' farm. Liberated her. Came home and looked her up: 'larvae may damage crop roots'. Oops.