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Sticker of Asiatic garden beetle
Bug card No. 0191 of 4,939

Asiatic garden beetle

Maladera formosae
Eats: PlantsBeetlesGardens and meadows6 legs

The Asiatic garden beetle is a small, sturdy, reddish brown beetle with a rainbow shimmer. It comes out at night to munch leaves and flowers. Its babies are fat white grubs that live in the soil.

Lives in
East Asia, and now much of the eastern USA and parts of Canada, in gardens and fields
Length
8 to 9 mm (0.31 to 0.35 in)
Top speed
about 0.39 km/h (0.24 mph)
On foot, estimate
Can it hurt you?
Harmless
Harmless to people. It only nibbles plants.
What does it eat?
The beetle eats leaves and flowers of more than 100 kinds of plants, like roses, asters and sunflowers. The grubs eat plant roots and rotting plant bits.
For real!Photo of Asiatic garden beetle
Picture by Beatriz Moisset. CC BY-SA 4.0, via Wikimedia Commons.

How big is it?

How long is it?

Asiatic garden beetle about 9 mm long (0.35 in)A grain of rice about 6 mm (0.24 in)A toy building brick about 3.2 cm (1.3 in)
small enough to sit on your fingernailas long as 1.5 grains of rice in a rowcould run across a dinner table in 9.2 seconds

How big is Asiatic garden beetle compared to YOU?

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How fast is it?

cool stuff

Fun facts

1

It eats at night, so gardeners often do not know who ate their leaves.

2

On summer nights it gathers around lamps and lights.

3

Its grubs are curled like the letter C and grow from about 1.4 to 19 millimetres long.

4

In tests, it liked basil better than carrots, peppers and many other plants.

5

It was first found in America in New Jersey in 1921 and has spread to many states since.

you asked

Most asked questions about Asiatic garden beetle

?What does the Asiatic garden beetle eat?

Leaves and flowers of over 100 kinds of plants. Its grubs eat roots in the soil.

?When is the Asiatic garden beetle active?

In summer, mostly at night, when it feeds and flies to lights.

For bug experts

Scientific name
Maladera formosae
Group
Beetles
Family
Scarabaeidae
Classification
Insecta > Coleoptera > Scarabaeidae
Lives on
Asia, North America

Where the facts come from

  1. Maladera formosae (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 Beatriz Moisset. CC BY-SA 4.0, 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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