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Sticker of New Zealand giant stick insect
Bug card No. 2987 of 4,939

New Zealand giant stick insect

Argosarchus horridus
Name means: “horridus means bristly in Latin, probably because of its spiny back”
Eats: PlantsStick and leaf insectsForests and woods6 legs

The New Zealand giant stick insect looks just like a twig. It can be pale white, grey, green-brown or dark brown, and the tops of its two front legs are pink or purple. The females are big and have little spikes on their backs.

Lives in
New Zealand, in forests, along the coast and in gardens
Length
10 to 15 cm (3.9 to 5.9 in)
males up to 10 cm, females usually 12 to 15 cm
Top speed
about 0.27 km/h (0.17 mph)
On foot, estimate
Can it hurt you?
Harmless
Harmless. It cannot bite or sting. Hold it gently, or just watch it.
What does it eat?
It eats leaves, for example of wild brambles, ramarama shrubs and climbing rātā vines.
For real!Photo of New Zealand giant stick insect
Picture by Biodiversity Heritage Library E.W. Janson (1822-1891). Public domain, via Wikimedia Commons.

How big is it?

How long is it?

New Zealand giant stick insect about 15 cm long (5.9 in)A crayon about 9 cm (3.5 in)A banana about 18 cm (7.1 in)A house cat about 50 cm (20 in)
as long as 5 toy building bricks in a rowabout as long as your handcould run across a dinner table in 13 seconds

How big is New Zealand giant stick insect compared to YOU?

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How fast is it?

cool stuff

Fun facts

1

The biggest females grow up to 20 centimetres, which makes it the longest insect in New Zealand.

2

In some places there are only females. They can lay eggs that hatch without any dad at all.

3

The mother simply drops her eggs to the ground, where they look just like plant seeds.

4

It is mostly awake at night, when the males go looking for females.

5

Its babies look like tiny grown-ups and change their skin six times as they grow.

you asked

Most asked questions about New Zealand giant stick insect

?How big is the New Zealand giant stick insect?

Females are usually 12 to 15 centimetres long, and the biggest reach 20 centimetres. Males are thinner and shorter.

?What does the New Zealand giant stick insect eat?

Leaves of plants such as brambles, ramarama and climbing rātā.

?Is the New Zealand giant stick insect dangerous?

No. It is a gentle leaf eater and cannot hurt you.

For bug experts

Scientific name
Argosarchus horridus
Group
Stick and leaf insects
Family
Phasmatidae
Classification
Insecta > Phasmatodea > Phasmatidae
Lives on
Australia and Oceania
Also known as
New Zealand bristly stick insect

Where the facts come from

  1. Argosarchus (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 Biodiversity Heritage Library E.W. Janson (1822-1891). Public domain, 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: Stick and leaf insects

Also at home here: Forests and woods

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