Plocamaphis flocculosa - Egg waxed up

When the eggs are freshly laid they are shiny dark green (as seen on some other images). Yet, most eggs found on the twigs later are pale and dusty. I was considering that, like the adults, maybe the eggs would secrete some wax themselves, but then we noticed this lady rubbing her hind legs over her abdomen to transfer some of her wax onto the freshly laid egg ...