Found a caterpillar and was wondering what it is?

Question

I live in central illinois and my kids found a caterpillar it is white almost a see through with little black spots on its back it has white hair on each end of it and the rest of it is bald it has recently made a cocoon started with the silk cocoon and now its inside of the silk cocoon in a brownish redish cocoon was wondering if anyone can tell me if its a moth or butterfly and possibly what type so i can see how long its gonna be in there.

Answer 1

Check this -

http://www.whatsthiscaterpillar.co.uk/am...

Answer 2

Could be one of the tussock moths.  There is a lot of variability in caterpillars appearances.  Some change a little while growing, some change a lot.

http://pick4.pick.uga.edu/mp/20q?search=...