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Sticker of Golden-ringed dragonfly
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Golden-ringed dragonfly

Cordulegaster boltonii

The golden-ringed dragonfly is a big black dragonfly with bright yellow rings around its long body. It patrols up and down streams, hunting other flying insects.

Lives in
Europe and parts of northwestern Africa, along streams, rivers and heaths
Length
7.4 to 8.4 cm (2.9 to 3.3 in)
Wingspan
10 cm (4 in)
Top speed
about 47 km/h (29 mph)
Flying, estimate
Can it hurt you?
Harmless
Harmless. It cannot sting, and it would rather fly away than meet you.
What does it eat?
It catches flying insects in the air, from tiny midges to flies, butterflies and even bumblebees. Its larvae hunt underwater.
For real!Photo of Golden-ringed dragonfly
Picture by Charles J. Sharp. CC BY-SA 4.0, via Wikimedia Commons.

How big is it?

How long is it?

Golden-ringed dragonfly about 8.4 cm long (3.3 in)A toy building brick about 3.2 cm (1.3 in)A crayon about 9 cm (3.5 in)A banana about 18 cm (7.1 in)

How wide are its wings?

Golden-ringed dragonfly wings about 10 cm tip to tip (4 in)A toy building brick about 3.2 cm (1.3 in)A crayon about 9 cm (3.5 in)A banana about 18 cm (7.1 in)
as long as 2.5 toy building bricks in a rowwings as wide as your handcould fly across a whole football pitch in 8 secondsmoves 160 times its own body length every second

How big is Golden-ringed dragonfly compared to YOU?

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How fast is it?

cool stuff

Fun facts

1

It is the longest dragonfly in Britain. The female is extra long because of her egg-laying tube at the end.

2

The mother lays her eggs in shallow water.

3

Its hairy larvae hide in the mud at the bottom of the stream for 2 to 5 years.

4

When a larva is ready to become a dragonfly, it usually climbs out at night.

5

It is a great acrobat in the air and sometimes flies very high up into the sky.

you asked

Most asked questions about Golden-ringed dragonfly

?How big is the golden-ringed dragonfly?

Males are about 7.4 centimetres long and females about 8.4 centimetres, with wings up to about 10 centimetres across.

?What does the golden-ringed dragonfly eat?

It catches flying insects, from midges and flies to butterflies and even bumblebees.

?Does the golden-ringed dragonfly sting?

No. Dragonflies have no sting and it is harmless to people.

For bug experts

Scientific name
Cordulegaster boltonii
Group
Dragonflies and damselflies
Family
Cordulegastridae
Classification
Insecta > Odonata > Cordulegastridae
Lives on
Europe, Africa

Where the facts come from

  1. Golden-ringed dragonfly (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 Charles J. Sharp. 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 hello@bugwiki.app and we will fix it.

More from the same group: Dragonflies and damselflies

Also at home here: Ponds, rivers and shores