Clepsis dumicolana
This Tortrix was new to the UK in May 2014 on Ivy at the Royal Brompton Hospital, Chelsea. Since then it has been found in Acton (http://www.natureguides.com/blog/2015/6/4/clepsis) and the Home Counties. It is known to spread quite quickly and given that the larval food plant is pretty ubiquitous, it is certainly worth keeping an eye out for.
Details of its life cycle can be found in this paper:
Kent Moth Group - this website now closed 