I find these guys on virtually all of my plants .. especially newly opening roses .. They move very fast and can actually hop! The one on the left didn't like my camera lens being so close and he kept hopping back and forth from the front to the back of the leaf. I know they are good guys. Even though at first glance they might look like the same spider they aren't. The one on the left has long arcing legs and the one on the right more angled. Perhaps they are a different sex. Can anyone identify them?