A worldwide community photographing and learning about wildlife
Scrutigeridae
That is a House Centipede, Family Scutigeridae! These guys are awesome critters. They are beneficial predators that eat roaches. They do not bite or sting, just run fast and have lots of long legs. It is difficult to tell from your photo the exact coloration and pattern for a species. Nice spot!
http://bugguide.net/node/view/11843