It's interesting to see what gets photographed when you're trying to shoot bees on flowers. When I replayed this video on the laptop I could see it wasn't a bee, but what is it? The big eyes suggest it might be a fly. I kept it on the video so you could see the really creepy looking proboscis. It looks like a tongue which has the ability to 'chew.'
http://solarbeez.com/2013/06/17/bee-flowers-in-may/