I had some different questions pop up the second time, too.
That bug is a roly-poly. We don't really have very many of them, at all, but I think I've used traffic circle and roundabout interchangeably. Neither one sounds "weird" to me, but the other choices did.
I have a different question. Around here, we have something that is commonly called a "Michigan turn." I've always wondered about this name, because other places must have them, too. AGDee, have you heard this term? Instead of making a left turn, at busy intersections/boulevards, you often have to turn right, then come back around. I googled it, and found articles, images, etc.
