This is one of the moths I keep talking about. Now, he's not a green one but he is as big as the green ones. This one died a natural death on the back porch, but you can see where I tried to take a bite out of him anyway!
If you turn him sideways he stretches from one side of the porch railing to the other. The railing is 6 inches wide! I will try to get a shot of a green one.