Light Emerald.
(Campaea margaritata)

At rest in the carrying box after an overnight stay in the moth trap.

Information:
A beautiful greenish white moth that rests with wings outstretched. It has two white cross-lines on the fore-wings and a single white cross-line on the hindwing that can line up with the outer of the two fore-wing cross lines. The facing edges of the two fore-wing cross-lines are edged with a darker green which forms a graduated bar between the two cross-lines. The trailing edge fringe and the leading edge are white.
Fore-wing length: 18-26mm. They can be seen flying May-August in most situations where trees occur in Britain and they are a common and widely distributed species.