Checking up on how a few tenanted mines were doing this evening, I was confronted by a number of small larvae wandering around in the tub. It didn't take long to realise that these were Chrysoesthia drurella larvae that had left the mines and were wandering around preparing to pupate. Hopefully anyway. I've separated them out and with a bit of luck at least one will make it through. The larvae are stunning, like tiny candy sticks crawling around.