This is her actually laying the eggs :-
This morning the two moths had separated, and, although the male was trying to latch on again, she was having none of it. So I took him out of the box to give her a bit of peace and quiet. Within about 5 or 10 minutes, she'd started laying lots of tiny little yellow eggs.
Lots and lots and lots of tiny yellow eggs!
Apparently, after a while, the fertile ones will turn grey.