Check out this nifty film of painted lady emergence from pupae:
It’s particularly interesting to see these color changes as the butterflies develop–and then they suddenly turn a milky color. What’s happening?
In preparation for shedding a skin, an insect secretes moulting fluid. This liquid separates the old skin from the new one underneath it–and eventually partially dissolves the cuticle. This changes the color and opacity of the skin.
For amazing shiny beauty, you must watch this lifecycle of purple hairstreaks.
Oh, were you trying to get work done? Sorry about that.