Orgyia leucostigma (White-marked Tussock Moth)
When I left to head to work this morning I noticed this little lad (or lass) on the tire of my car. I took a few pictures of it there before moving it down onto the pavement and taking a few more, including this one. It’s a fairly pretty little caterpillar, although the tussock moths are pests of trees and therefore not necessarily desirable visitors. Note that contact with hairs may cause an allergic reaction.