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Sticker of Asian giant water bug
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Asian giant water bug

Lethocerus indicus

The Asian giant water bug is a huge brown bug that lives in ponds and paddy fields. It can be as long as a grown-up's finger. In some Asian countries people even cook and eat it as a treat.

Lives in
South and Southeast Asia, southern China and New Guinea, in ponds and paddy fields
Length
6.5 to 8 cm (2.6 to 3.1 in)
Top speed
about 4.6 km/h (2.9 mph)
Swimming, estimate
Can it hurt you?
Can bite or sting
What does it eat?
It is a hunter that grabs other water animals with its strong front legs.
For real!Photo of Asian giant water bug
Picture by Viethavvh at Vietnamese Wikipedia. CC BY-SA 3.0, via Wikimedia Commons.

How big is it?

How long is it?

Asian giant water bug about 8 cm long (3.1 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 rowcould swim the length of a bathtub in 1.6 seconds

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How fast is it?

cool stuff

Fun facts

1

In Vietnam, Thailand, the Philippines and northeast India, people fry it and eat it. Some say it tastes like sweet shrimp.

2

The male makes a special smell that some say is like bananas.

3

In Vietnam a tiny drop of its scent is added to soups and sauces, and real drops are very expensive.

4

Scientists study its big flight muscles to learn how muscles, even heart muscles, work.

you asked

Most asked questions about Asian giant water bug

?Can you eat a giant water bug?

Yes. In parts of Asia people fry it or use it in sauces. Some say it tastes like sweet shrimp.

?How big is the Asian giant water bug?

It is about 6.5 to 8 centimetres long.

For bug experts

Scientific name
Lethocerus indicus
Group
True bugs and cicadas
Family
Belostomatidae
Classification
Insecta > Hemiptera > Belostomatidae
Lives on
Asia, Australia and Oceania

Where the facts come from

  1. Lethocerus indicus (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 Viethavvh at Vietnamese Wikipedia. CC BY-SA 3.0, 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: True bugs and cicadas

Also at home here: Ponds, rivers and shores