Dark fishing spider

Dark fishing spider nests in trees. They are seen clinging to trees. It can even be seen on the walls of the house. I see them in trees most of the time. I really like these beauties. It looks so good when it's like this with arms and legs spread out all around the wall. They are much smaller. But when they move, they move very fast. Many times they make nets and hang with nets. As far as I know what protects insects from netting.