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Sticker of Small milkweed bug
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Small milkweed bug

Lygaeus kalmii
Eats: PlantsTrue bugs and cicadasGardens and meadows6 legs

The small milkweed bug is a bright orange-red and black bug. On its back you can see a black heart shape inside an orange X. It lives where milkweed plants grow and loves their seeds.

Lives in
North and Central America, in grassy and sandy places with milkweed
Length
1 to 1.2 cm (0.39 to 0.47 in)
Top speed
about 0.2 km/h (0.12 mph)
On foot, estimate
Can it hurt you?
Harmless
Harmless to people. It does not sting and is fun to watch on milkweed plants.
What does it eat?
It drinks flower nectar and sucks juice from milkweed seeds. If food runs short, it may feed on other insects.
For real!Photo of Small milkweed bug
Picture by Rhododendrites. CC BY-SA 4.0, via Wikimedia Commons.

How big is it?

How long is it?

Small milkweed bug 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 18 seconds

How big is Small milkweed bug compared to YOU?

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How fast is it?

cool stuff

Fun facts

1

The babies start out all red and get black markings as they grow.

2

Its black head has a little red spot in the middle.

3

Only the grown-up bugs survive the winter. They wait until spring to lay eggs.

4

The mother lays her eggs on milkweed plants in spring.

5

People often mix it up with other red and black bugs.

you asked

Most asked questions about Small milkweed bug

?Is the small milkweed bug harmful?

No. It is harmless to people and does not sting.

?What does a milkweed bug eat?

Mostly flower nectar and milkweed seeds, and sometimes other insects.

?How big is a small milkweed bug?

About 1 centimetre long.

For bug experts

Scientific name
Lygaeus kalmii
Named by
StΓ₯l, 1874
Group
True bugs and cicadas
Family
Lygaeidae
Classification
Insecta > Hemiptera > Lygaeidae
Lives on
North America
Also known as
Common milkweed bug

Where the facts come from

  1. Lygaeus kalmii (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 Rhododendrites. CC BY-SA 4.0, Wikimedia Commons. The round sticker of this bug is cut from the same 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.

More from the same group: True bugs and cicadas

Also at home here: Gardens and meadows