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Sticker of Oriental blue dasher
Bug card No. 3173 of 4,939

Oriental blue dasher

Brachydiplax chalybea

The oriental blue dasher is a dragonfly from Asia. The male is powder blue with a dark tip on its tail, and its wings have a golden brown base. The female is brownish yellow.

Lives in
Eastern Asia, from India to Japan and Indonesia, near all kinds of water
Length
3.3 to 3.5 cm (1.3 to 1.4 in)
males
Top speed
about 31 km/h (19 mph)
Flying, estimate
Can it hurt you?
Harmless
Harmless. Dragonflies do not sting.
What does it eat?
Like other dragonflies, it catches small insects while flying.
For real!Photo of Oriental blue dasher
Picture by Charles J. Sharp. CC BY-SA 4.0, via Wikimedia Commons.

How big is it?

How long is it?

Oriental blue dasher about 3.5 cm long (1.4 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 6 grains of rice in a rowcould fly across a whole football pitch in 12 secondsmoves 250 times its own body length every second

How big is Oriental blue dasher compared to YOU?

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How fast is it?

cool stuff

Fun facts

1

The male's back wing is about 24 to 27 millimetres long.

2

You see the males more often, because they guard their own patch of water.

3

The female lays eggs by flicking a little blob of eggs out of the water onto rocks and plants.

4

It can live in many kinds of wet places, even a bit salty or messy water.

you asked

Most asked questions about Oriental blue dasher

?What colour is the oriental blue dasher?

The male is powder blue with a dark tail tip. The female is brownish yellow.

?Where does the oriental blue dasher live?

In eastern Asia, from India to Japan and Indonesia, near ponds and other water.

For bug experts

Scientific name
Brachydiplax chalybea
Group
Dragonflies and damselflies
Family
Libellulidae
Classification
Insecta > Odonata > Libellulidae
Lives on
Asia
Also known as
Yellow-patched lieutenant, Rufous-backed marsh hawk, Blue dasher

Where the facts come from

  1. Brachydiplax chalybea (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 sticker of this bug is drawn from this 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.

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More from the same group: Dragonflies and damselflies

Also at home here: Ponds, rivers and shores

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