Today I saw four spiders in all together within a couple cubic feet of each other, and to my eye, they all seemed to be different species, although maybe they were males and females of two different species. Two of them were jumping spiders, with similar colorings but different designs, and the other two were hiding-in-dead-leaf spiders, also rather different in appearance, one much bigger than the other. I couldn't get any good pictures of the hiding-in-leaf spiders, but the last picture here shows the leaf the bigger one was hiding in.