Interactive Bugs

A Japanese garden · Bees, wasps and ants

Asian giant hornet

Vespa mandarinia

A very large wasp with an orange head, a dark brown thorax and an abdomen banded in orange and brown.

Size
Workers 3.5 to 4cm, queens over 5cm
Look for it
April to November
Where
Woods and low hills in Japan and across East Asia

My spotter's list

Hovers after you with a deep hum. Move your pointer and see.

When to look

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Giant hornet

Good to know

Six things about the giant hornet

Big

The world's largest hornet

A queen can be more than five centimetres long, with a wingspan of over seven.

Bees

A raider of beehives

A few dozen hornets can wipe out a hive of thirty thousand European honeybees in a few hours.

Ball

Bees that cook it

Japanese honeybees have a defence. Hundreds of them pile on to a hornet scout and shiver until their body heat kills it.

Far

A long-distance flier

It can fly at about 25 miles an hour and travel many kilometres in a day.

Sting

A serious sting

Its sting is long and painful. It is dangerous mainly if someone is stung many times, or is allergic.

Nest

It nests in the ground

Unlike most hornets it usually nests underground, often in an old mouse hole or among tree roots.

The real thing

Photos of the giant hornet

Asian giant hornet, photo 1
Photo: Yasunori Koide, CC BY-SA 4.0, Wikimedia Commons
Asian giant hornet, photo 2
Photo: Yasunori Koide, CC BY-SA 4.0, Wikimedia Commons
Asian giant hornet, photo 3
Photo: LiCheng Shih, CC BY 2.0, Wikimedia Commons

Photos are from Wikimedia Commons, used under the free licences shown. They have been resized, and cropped where they appear in link previews.

Out and about

How to spot one

Look where sap runs from an oak tree, where they feed alongside beetles and butterflies. Watch from a distance.

Lend a hand

How to help

Leave nests well alone and tell someone who can deal with them. Away from the nest, a hornet is not looking for trouble.

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