Bug Wiki
Sticker of Drone fly
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Drone fly

Eristalis tenax

The drone fly is a hover fly that looks a lot like a honey bee, but it is really a fly. It is brown and black with orange-yellow marks and big marbled eyes. You can find it on flowers almost everywhere in the world.

Lives in
Almost all over the world except Antarctica, in gardens and fields
Length
1.5 cm (0.59 in)
Top speed
about 16 km/h (9.9 mph)
Flying, estimate
Can it hurt you?
Harmless
Harmless. It looks like a bee, but it is a fly and cannot sting.
What does it eat?
The grown-up flies visit flowers. The larvae live in muddy, dirty water and eat the tiny germs that grow there.
For real!Photo of Drone fly
Picture by Stoxastikos. CC BY-SA 4.0, via Wikimedia Commons.

How big is it?

How long is it?

Drone fly about 1.5 cm long (0.59 in)A grain of rice about 6 mm (0.24 in)A toy building brick about 3.2 cm (1.3 in)A crayon about 9 cm (3.5 in)
as long as 2.5 grains of rice in a rowcould fly across a whole football pitch in 24 secondsmoves 300 times its own body length every second

How big is Drone fly compared to YOU?

Just maths in your browser. Nothing is saved or sent anywhere.

How fast is it?

cool stuff

Fun facts

1

Its baby is called a rat-tailed maggot because it has a long breathing tube like a tail. The tube can be several times longer than its body, like a snorkel.

2

The pupa is grey-brown and still has its long tail, so it looks like a tiny mouse.

3

Males guard a flowerbed or bush, hovering in the air and chasing away other insects.

4

Males have huge eyes that almost touch. Females have smaller eyes that are further apart.

5

The black parts on its body soak up sunshine to help it warm up.

you asked

Most asked questions about Drone fly

?Can a drone fly sting?

No. It only looks like a bee. It is a fly and has no stinger.

?How can you tell a drone fly from a bee?

A drone fly has only two wings and no thin waist. A honey bee has four wings and a narrow waist.

?What is a rat-tailed maggot?

It is the baby of the drone fly. It lives in muddy water and breathes through a long tail-like tube.

Myth buster

Myth: The drone fly is a bee and can sting.

Truth: No. It only looks like a bee, which helps keep birds away. It is a fly and has no stinger.

For bug experts

Scientific name
Eristalis tenax
Group
Flies and mosquitoes
Family
Syrphidae
Classification
Insecta > Diptera > Syrphidae
Lives on
Europe, Asia, Africa, North America, South America, Australia and Oceania
Also known as
Common drone fly

Where the facts come from

  1. Eristalis tenax (Wikipedia, CC BY-SA 4.0): what it looks like, where it lives, what it eats, sizes and fun facts, retold in simple words.
  2. Picture by Stoxastikos. CC BY-SA 4.0, Wikimedia Commons. The round sticker of this bug is cut from the same picture.

If we got something wrong, sorry, we are bug fans, not a science journal. Tell us at [email protected] and we will fix it.

More from the same group: Flies and mosquitoes

Also at home here: Gardens and meadows