I found this bug in the house this morning. I live in Boise Idaho and I have never seen one of these before. It looks like a "Rolly-Polly", but was MUCH faster, and did not curl up into a tight ball. This is the only one I found. I tried to look it up on the internet and also in the National Audubon Society Field Guide with no luck. Can you help me out???
You are correct. It is a type of Isopod, a Crustacean, and is related to the common Pill Bugs you know as Rolly-Pollies. They generally do not do any damage unless they are very plentiful.