This little one I believe is called a “Comb clawed spider.” They are related to the Black Widow, as you can tell by their shape. They get their name because on the forth pair of legs are special spines that they use to comb out their web which facilitates their prey getting tangled in it. What’s interesting is that they weave silk that is not sticky so that they can comb it. Now I’d like to make it clear that these classifications are best guess. You may be shocked to find there are MANY different types. I’d like to give credit to Daniel G for the information. I get a lot of information from his posts. I believe he works in Entymology at UC Irvine. He's another of my heroes. Below is his yahoo answers page. He's answered 17,000 questions. He's a badass. Frank and wise.