Having collected a few leaves from Hatfield Forest I awaited the emergence of the pupa that I found.
2 turned out to be the very handsome Green Oak Tortrix (Tortrix viridana) http://bensale-essexmoths.blogspot.com/2009/05/in-life-of-gren-oak-tortrix.html
1 turned out to be a Brown Oak Tortrix (Archips crataegana) http://bensale-essexmoths.blogspot.com/2009/06/day-in-life-of-brown-oak-tortrix.html which I understand is quite scarce.
Hope everybody else is experiencing great Moth-trapping at the moment!
Regards Ben (Bennyboymothman)