Text size & display
← Insects & minibeasts

Insect · Aglais io

Explore together · A short start and more to discover

Discover the peacock butterfly

Four striking eyespots cause a surprise, but the real eyes are on the head.

A peacock butterfly rests with open wings on a flower while both Wusels watch.
A peacock butterfly rests with open wings on a flower while both Wusels watch.

The short answer

A peacock butterfly has large eye-like spots on its upper wings that can startle predators. Adults drink nectar; caterpillars eat nettle leaves. Caterpillar and butterfly are stages of the same species.

A peacock butterfly rests with open wings on a flower while both Wusels watch.
A peacock butterfly rests with open wings on a flower while both Wusels watch.

See the connection

1. Egg: The life cycle begins with an egg on a suitable plant.
1. EggThe life cycle begins with an egg on a suitable plant.
2. Caterpillar: Peacock caterpillars grow by eating nettle leaves.
2. CaterpillarPeacock caterpillars grow by eating nettle leaves.
3. Pupa: The body changes inside the pupa. Wings do not grow by practising flight.
3. PupaThe body changes inside the pupa. Wings do not grow by practising flight.
4. Butterfly: The adult emerges and later flies. These are stages of one species; sizes and colours are simplified.
4. ButterflyThe adult emerges and later flies. These are stages of one species; sizes and colours are simplified.

Simplified drawings, not to scale. Not a guide for identifying species.

An imagined Wusel scene

Puschel and Flauschi investigate

Puschel“That butterfly is looking at me with its wings!” Puschel whispers. Flauschi looks more closely. Flauschi“Those are patterns, not real eyes.”

The butterfly opens its wings on a flower. Puschel lowers his explorer magnifier to avoid disturbing it. Puschel“Four little surprises,” he says quietly.

Flauschi nods. Flauschi“And we only look.” As they leave, Puschel glances back. A pattern can tell a lot without saying a word.

What it looks like

Each upper wing surface has a striking eyespot. These patterns can startle predators.

How it lives

The adult drinks nectar. Its caterpillars eat nettle leaves; the butterfly later emerges from a pupa.

Good to know

A peacock butterfly is an insect with six legs. The front pair is small and held against the body, so often only four walking legs are visible.

Try explaining it

What do peacock butterfly caterpillars eat?

Choose a), b) or c), then explain your choice.

  • a)Nettle leaves.
  • b)Only flower nectar.
  • c)Tree bark as their main food.
Show the explanation

Correct: a): Nettle leaves.

Caterpillars eat nettle leaves. Adult butterflies drink nectar instead.

Word help
nectar
A sugary liquid offered by many flowers and eaten by some animals.
metamorphosis
A transformation of the body during a life cycle, such as from caterpillar through pupa to butterfly.
Explore in more detail

Here you will find longer explanations and further details. You can explore them together.

Understand step by step

How it works – simply explained

How the steps connect
  1. The caterpillar lives differently
  2. Transformation changes the body
  3. Adults feed differently

The caterpillar lives differently

Young peacock butterflies are caterpillars feeding on nettle leaves, not miniature finished butterflies.

Transformation changes the body

The body develops within the pupa. The winged adult later emerges; a pupa is not an empty pebble.

Adults feed differently

Adults drink nectar. Wing eyespots may startle predators but are not real eyes. Small front legs explain why six legs are not always obvious.

Why a caterpillar need not practise flying

A caterpillar has no completed butterfly wings. It grows and later becomes a pupa, where transformation into the adult occurs. Caterpillar and butterfly are stages of the same species, not unrelated namesakes. This complete transformation is called metamorphosis. Not all insect species have a pupal stage.

References for this explanation: [1]

Explore animal sounds

We currently have no freely reusable recording reliably identified as this animal. That does not mean it is completely silent. Explore it in the picture and observe animals outdoors from a distance without touching or disturbing them.

More about this animal: NABU Insektentrainer: Tagpfauenauge

An optional question for further exploration

You can use the longer explanation above. This is extra, not needed for the first quiz.

An extra question

Puschel sees only four walking legs on a peacock butterfly. Why is it still an insect?

Show answer

It has six legs. The front pair is small and held against the body.

Pictures and sources for adults