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Sticker of Sycamore tussock moth
Bug card No. 4270 of 4,939

Sycamore tussock moth

Halysidota harrisii
Eats: PlantsMothsForests and woods6 legs

The sycamore tussock moth is a pale yellow moth with dark bands on its front wings. Its caterpillar is a fluffy yellow ball of hair with long orange and white tufts sticking out like paintbrushes. It lives on sycamore trees.

Lives in
Southeastern Canada, the eastern USA and northeastern Mexico, wherever sycamore trees grow
Wingspan
5 cm (2 in)
Top speed
about 16 km/h (9.9 mph)
Flying, estimate
Can it hurt you?
Has stinging hairs
The hairy caterpillar can give some people an itchy rash. Look, but do not pick it up.
What does it eat?
The caterpillars eat the leaves of the American sycamore tree.
For real!Photo of Sycamore tussock moth
Picture by James Solomon, USDA Forest Service, United States. CC BY 3.0 us, via Wikimedia Commons.

How big is it?

How wide are its wings?

Sycamore tussock moth wings about 5 cm tip to tip (2 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 1.5 toy building brickscould fly across a whole football pitch in 24 seconds

How big is Sycamore tussock moth compared to YOU?

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How fast is it?

cool stuff

Fun facts

1

The caterpillars grow to about 2.5 to 3.5 centimetres long.

2

There are two families every year. The second one spends the winter as pupae inside cocoons.

3

The grown-up moth looks almost exactly like the banded tussock moth.

4

Birds eat most of them, which keeps sycamore trees safe.

you asked

Most asked questions about Sycamore tussock moth

?Is the sycamore tussock moth caterpillar poisonous?

Its hairs can cause an itchy rash on some people, so do not touch it.

?What does the sycamore tussock moth eat?

Its caterpillars eat the leaves of sycamore trees.

For bug experts

Scientific name
Halysidota harrisii
Named by
Walsh, 1864
Group
Moths
Family
Erebidae
Classification
Insecta > Lepidoptera > Erebidae
Lives on
North America
Also known as
Sycamore tiger moth

Where the facts come from

  1. Halysidota harrisii (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 James Solomon, USDA Forest Service, United States. CC BY 3.0 us, 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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