I found a spider out side that has pure brown legs, black abdomen with a beige marking on it. the marking is kinda hard to describe. its like a rectangle and then heart shape above it. the carapace is white and the abdomen is rather long. the spider is about the size of a quarter. i threw in a cricket the same size as the spider and it agressively took it out then webbed like nuts. i noticed that it has 4 web spinners instead of two. whys that?