Many species of nursery web spiders are able to walk on water and dive after prey. They feed on insects, worms, small fish and tadpoles. This species, like many others, is known to engage in sexual cannibalism, where the male is eaten after mating. In an attempt to satisfy the females hunger, the male will present the female with a meal prior to mating. Many species are able to walk on the surface of still bodies of water, and may even dive beneath the surface for a time to escape enemies. In escaping predators, they may very well jump a distance of five or six inches. This beast had no fear of me and I think that I was being eyed up for a late night snack. =)
This was taken in my back yard in Rockaway, NJ USA with my Nikon D3100 and the 85mm macro lens.