If you think about, that is creepy as all get out. Unless Combee regularly shed their outer honeycomb exoskeleton. Then it's just kind of dark humor.
Well Bee Flies, the creature that cutiefly and ribombee are based on, often have parasitoid larvae, as in, a parasite that eventually eats or sterilizes its host. And bees, ants, and termites are regularly tricked into caring for the larvae of other species. This is actually quite fitting, actually.
EDIT: oh wait, the Ribombee's putting them IN. Nevermind, I thought they were coming OUT.