Honey bees look like this:

A swarm of Honey Bees looks like this – only Honey Bees do this:

Whereas these are Bumble Bees – usually seen on their own:

The White-Tailed Bumblebee is another common Bumblebee:

Wasps look different – their nest is made of paper rather than wax:

The hornet is wasp-like but somewhat bigger:

Some kinds of fly look like bees, such as the Dronefly and Hoverfly: