I collected several of these casebearers in late May. A moth finally emerged on July 17. There were several cases in the container and I lost track of some of them in the meantime with replenishing the leaves for the casebearers. I can only assume that the moth that emerged, did in fact emerge from one of the cases although the one case that I did find in the container did not show any visible signs of being opened. I still have another container with a case in it, so if a similar moth emerges, I'll be more comfortable with the results.