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Sticker of Argus tortoise beetle
Bug card No. 0141 of 4,939

Argus tortoise beetle

Chelymorpha cassidea
Name means: “Argus was a giant in Greek stories with 100 eyes. The beetle can stretch out its red head, so it looks like it has one big red eye.”
Eats: PlantsBeetlesGardens and meadows6 legs

The Argus tortoise beetle is shaped like a tiny turtle and coloured like a ladybird, yellow to bright red with black spots. It is one of the biggest leaf beetles in North America. It can stretch its red head out from under its shield.

Lives in
North America and the Caribbean, in meadows and along roadsides
Length
0.9 to 1.2 cm (0.35 to 0.47 in)
Top speed
about 0.45 km/h (0.28 mph)
On foot, estimate
Can it hurt you?
Harmless
Harmless. It cannot bite or sting people.
What does it eat?
It eats leaves of plants like milkweed, raspberry, corn, sweet potato and morning glory. The larvae eat leaves too.
For real!Photo of Argus tortoise beetle
Picture by Kaldari. CC0, via Wikimedia Commons.

How big is it?

How long is it?

Argus tortoise beetle about 1.2 cm long (0.47 in)A grain of rice about 6 mm (0.24 in)A toy building brick about 3.2 cm (1.3 in)
as long as 2 grains of rice in a rowcould run across a dinner table in 8 seconds

How big is Argus tortoise beetle compared to YOU?

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How fast is it?

cool stuff

Fun facts

1

It lays eggs on leaves in groups of 15 to 30, and they hatch within 10 days.

2

Its larvae drop to the soil to turn into pupae and spend the winter there.

3

It eats morning glory leaves, which have poison in them, and might keep the poison in its own body to stay safe from enemies.

4

Sometimes it eats a whole plant bare.

you asked

Most asked questions about Argus tortoise beetle

?Is the Argus tortoise beetle a ladybird?

No. It looks a bit like a ladybird, but it is a leaf beetle shaped like a little turtle.

?What does the Argus tortoise beetle eat?

Leaves of milkweed, morning glory, sweet potato, raspberry and other plants.

For bug experts

Scientific name
Chelymorpha cassidea
Group
Beetles
Family
Chrysomelidae
Classification
Insecta > Coleoptera > Chrysomelidae
Lives on
North America
Also known as
Milkweed tortoise beetle

Where the facts come from

  1. Chelymorpha cassidea (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 Kaldari. CC0, 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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