Ive seen these things(at least they looke the same) in my house, up here in vancouver!, and I hate them, its an old house and I dont know how they get in, but I keep having to throw them outside.
And once at work we opened a crate of aluminum from china and a couple of black widow spiders ran out, had to call somebody to take care of them. Good thing nobody did anything stupid and got bit because we werent sure what kind of spiders they were at first...