Posted: 23/07/2017 at 18:43
Ignore the WUM. The Mods will deal with it when they're back at their desks.
Your photo looks like the cocoon of a moth caterpillar ... don't know what type - inside the cocoon it'll form a chrysalis and then pupate and eventually emerge as a fully-fledged adult moth. Keep it in the same sort of environment as you found it and it should be fine.
Edited to say: I'm sure it'll be fine in your bug house
Last edited: 23 July 2017 18:45:21