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Sticker of Alfalfa plant bug
Bug card No. 0044 of 4,939

Alfalfa plant bug

Adelphocoris lineolatus
Eats: PlantsTrue bugs and cicadasGardens and meadows6 legs

The alfalfa plant bug is a long, slim bug that can be light green or pale brown. Its feelers are almost as long as its whole body. It loves alfalfa and cotton plants, and farmers are not happy to see it.

Lives in
Europe, North Africa and Asia, and now also Canada and the USA, in fields and grassland
Length
7.6 to 9.5 mm (0.3 to 0.37 in)
Top speed
about 0.18 km/h (0.11 mph)
On foot, estimate
Can it hurt you?
Harmless
Harmless to people. It only hurts plants.
What does it eat?
It sucks juice from many plants, like alfalfa, beans, cotton, peaches and strawberries. It likes plants with flowers best.
For real!Photo of Alfalfa plant bug
Picture by Hectonichus. CC BY-SA 3.0, via Wikimedia Commons.

How big is it?

How long is it?

Alfalfa plant bug about 9.5 mm long (0.37 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 20 seconds

How big is Alfalfa plant bug compared to YOU?

Just maths in your browser. Nothing is saved or sent anywhere.

How fast is it?

cool stuff

Fun facts

1

The males are a little bigger than the females.

2

Its babies, called nymphs, are green with red eyes and have no wings yet.

3

A mother can lay up to 300 eggs inside the stems of plants. Most eggs wait through the winter and hatch in spring.

4

It came to Canada and the USA about 100 years ago and spread far, because it likes cool weather.

you asked

Most asked questions about Alfalfa plant bug

?What does the alfalfa plant bug eat?

It sucks juice from alfalfa, cotton, beans and other plants, especially ones with flowers.

?How big is an alfalfa plant bug?

About 8 to 9 millimetres long, a bit smaller than a fingernail.

For bug experts

Scientific name
Adelphocoris lineolatus
Group
True bugs and cicadas
Family
Miridae
Classification
Insecta > Hemiptera > Miridae
Lives on
Europe, Africa, Asia, North America
Also known as
Lucerne bug

Where the facts come from

  1. Adelphocoris lineolatus (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 Hectonichus. CC BY-SA 3.0, 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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