Finally, last night at about 10:30, right when I was ready to give up entirely, a worm moulted, and I was right there to film it. The video could be better quality, but the lighting wasn't great since the wee beastie waited until cover of darkness to get it done. To give you an idea of how fast slipping their little skins is, I did speed this video up, but only to make it a bit less boring for you. I sped it up X2, so "for real life" (as Elliot would say) it took a total of about five minutes. No wonder I was able to miss so many!
Also interesting, usually their faces pop off first - like a mask, and then they shed the body skin. In this picture you can see the freshly emerged worm, their slipped skin, attached to the parchment with a bit of silk, and their "mask" on.

This one's face stayed on until the end, and then came off while I was taking a picture.

So there you go, and honestly I couldn't be any happier that it finally worked out, and I did get a fair bit done on a sweater.
See you soon,
Stephanie