One of the most common hover flies in my garden is episyrphus balteatus. I am fairly confident about my identification in four of these shots. Less so in the one below.
I believe episyrphus balteatus is one of the flies also known by the common name, marmalade fly. Obviously, this is because of its colour and not because it has a penchant for preserves!.
I think hover flies are a delightful addition to the garden. The adults feed entirely on nectar but the larvae are voracious predators of aphids, which makes them jolly useful! Episyrphus balteatus is also one of the best hover fly hoverers, making it a relatively easy target for the photographer.
Hover flies disguise themselves as bees or wasps as a defensive mechanism. Unfortunately, they are so good at this that many people assume they are bees or wasps and, if they think the latter, they tend to swat them. What a shame. Hover flies have no sting and no downside for humans. They aren’t even interested in our food.