Knotter Bee

That's right, it's not a bee.  It is a hoverfly but you have to admit it is a very good mimic.

When I looked up its ID, it said that this hoverfly doesn't have a common name so I thought I'd provide a suggestion of Knotter Bee.

Officially, it is Cheilosia illustrata.


How do we know it is not a bee? Look at those HUGE eyes - three times the size of a bee's.
Still not convinced?  Check out those antennae (they may be small but it is what it does with them that counts).  Bees would have large, thick obvious antennae.