Movie clip to interact with button

Hi all,

I have an animation of a bee (MC) flying to a flower. I have placed an invisible button over the flower and want a caption to appear when the bee lands on the flower (on ‘over’ state of button) and then disappears when the bee flies off. Any idea how I can do this?
Secondly, how do I stop the bee flapping its wings when it lands on the flower and then start them flapping again when it leaves?