Have you ever walked into your garage at night and turned on the light, only to see what seems like a hundred dark black cockroaches scatter? Those are usually your Oriental roaches. They are generally smaller in size than the American Roach, which are reddish brown, large, and have distinct large antennae on their heads. Bottom line is this: nobody wants these nasty pests hanging around their houses. And if you see one, chances are pretty good you will continue to see them.