I don't know how this frog could tolerate the fly sitting on it's eyeball, but it didn't seem to mind. This small green frog was in a very stagnant woodland pool and was cold to the touch when I picked it up. It had slow reflexes and was easy to catch. Green frogs have dorsolateral ridges that run down the sides of their backs, which distinguishes them from bullfrogs, which lack them.
The green frog is a species of frog native to the eastern half of the United States and Canada. The two subspecies are the bronze frog and the northern green frog.