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Sticker of Common crow butterfly
Bug card No. 0313 of 1,500

Common crow butterfly

Euploea core
Eats: Nectar and pollenButterfliesGardens and meadows6 legs

The common crow is a shiny black butterfly with rows of white spots along the edges of its wings. It flies slowly and glides easily through the air. Birds leave it alone because it tastes horrible.

Lives in
South Asia to Australia, in gardens and forests
Wingspan
8.5 to 9.5 cm (3.3 to 3.7 in)
Top speed
about 19 km/h (12 mph)
Flying, estimate
Can it hurt you?
Harmless
Harmless to people. It is only bad to eat, which is why birds avoid it.
What does it eat?
Grown-ups drink nectar and spend a long time at each bunch of flowers. The caterpillars eat leaves and take in poisons from their food plant.
For real!Photo of Common crow butterfly
Picture by Charles J. Sharp. CC BY-SA 4.0, via Wikimedia Commons.

How big is it?

How wide are its wings?

Common crow butterfly wings about 9.5 cm tip to tip (3.7 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)
wings as wide as 3 toy building brickscould fly across a whole football pitch in 20 seconds

How big is Common crow butterfly compared to YOU?

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How fast is it?

cool stuff

Fun facts

1

The poison from the caterpillar's food stays in its body all the way to the grown-up butterfly.

2

Some tasty butterflies copy its look so birds will think they taste bad too.

3

Groups of them gather on wet mud to drink, which is called mud-puddling.

4

Males visit certain plants to collect a special scent they use to attract a mate.

you asked

Most asked questions about Common crow butterfly

?Is the common crow butterfly poisonous?

It tastes bad and is poisonous to birds that try to eat it, but it is harmless to touch with care.

?Why is it called the common crow?

Because it is black like a crow and very common.

?How big is the common crow butterfly?

Its wings are about 8 to 9 centimetres across.

For bug experts

Scientific name
Euploea core
Named by
Cramer, 1780
Group
Butterflies
Family
Nymphalidae
Classification
Insecta > Lepidoptera > Nymphalidae
Lives on
Asia, Australia and Oceania
Also known as
Common crow, Common Indian crow, Australian crow

Where the facts come from

  1. Euploea core (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 [email protected] and we will fix it.

More from the same group: Butterflies

Also at home here: Gardens and meadows