MissJean,

Those "Banana Spiders", as we call them are all over Florida and are quite large. I have seen some almost as large as the photos of them. I don't mind them in the yard when they make their web from tree to tree, it's only when they attach to the house that I tear down the web. I live in the middle of a wildlife preserve, so you sort of expect all sorts of insects to invade your property.