All have coccooned and are in the fridge

Our entomologist sent an e-mail saying that some or her polyphemuses (pl?) hatched after just two weeks in the cocoon. She advised that we unstick them from the cage and put them in a brown paper bag in the fridge till mid October. Those guys were really stuck on there! One made its cocoon on the side of the yogurt container we were using to hold the birch twigs, and you can see the nutrition label on it!