I have lost 2 at early instar to mismolt and its my impression that ventilation is pretty important for this species. I moved them from plastic housing to a caterpillar castle net cube with silk flowers sewn into it and have not had a problem since. It's a challenge keeping humidity up in the cube so I put a plastic tray with pebbles below the cube, and I keep a water level in there. Since my Idolos are on the shelf below the heat rises, evaporates the water, and keeps the humidity up. I still mist a few times a day, as well.
What is the recommended humidity level for them?
What is the recommended humidity level for them?