I'm sure you've noticed that when a lep is killed by freezing it's abdomen often rises, until corrected. People talk about sagging abdomens, but they seem to do the opposite. Why does it happen?
How do you correct this? It's not really a concern though, I invented my own way; pinning a paper-strip across both hind wings, bracing it down from the middle. I suppose you could also make a tee-pee out of 2 pins. I was just curious as to how others do it.