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Sticker of Regal fritillary
Bug card No. 1153 of 1,500

Regal fritillary

Speyeria idalia
Eats: Nectar and pollenButterfliesGardens and meadows6 legs

The regal fritillary is a big, bright orange butterfly with dark back wings covered in rows of spots. Underneath, its wings have bold silvery white spots. It lives on the wide grassy prairies of America and zooms along low over the ground.

Lives in
The east and middle of the United States, on tall grassy prairies
Wingspan
6.8 to 10 cm (2.7 to 4.1 in)
Top speed
about 20 km/h (12 mph)
Flying, estimate
Can it hurt you?
Harmless
Harmless. It is a gentle butterfly that only wants to drink nectar.
What does it eat?
The butterflies drink nectar from flowers like milkweeds and thistles. The caterpillars eat only violet leaves.
For real!Photo of Regal fritillary
Picture by Sarah Bailey at English Wikipedia. CC BY-SA 3.0, via Wikimedia Commons.

How big is it?

How wide are its wings?

Regal fritillary wings about 10 cm tip to tip (4.1 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 your handcould fly across a whole football pitch in 19 seconds

How big is Regal fritillary compared to YOU?

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How fast is it?

cool stuff

Fun facts

1

A girl regal fritillary can lay more than 1,000 eggs, maybe even 2,000.

2

The tiny caterpillars hatch in autumn, hide in the dead leaves and sleep all winter without eating a thing.

3

In spring the caterpillars wake up just when the violets grow fresh new leaves to eat.

4

The caterpillar is black with yellow and orange stripes and has soft spikes all over its body.

5

It has only one family of babies each year, and the grown-up butterflies fly in summer.

you asked

Most asked questions about Regal fritillary

?What does a regal fritillary eat?

The butterfly drinks flower nectar, mostly from milkweeds and thistles. The caterpillars eat violet leaves.

?Where does the regal fritillary live?

It lives on the tallgrass prairies in the middle and east of the United States.

?Why is the regal fritillary rare?

Most of the old prairie where it lived has been turned into farms and towns, so it has lost much of its home.

For bug experts

Scientific name
Speyeria idalia
Group
Butterflies
Family
Nymphalidae
Classification
Insecta > Lepidoptera > Nymphalidae
Lives on
North America

Where the facts come from

  1. Regal fritillary (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 Sarah Bailey at English Wikipedia. CC BY-SA 3.0, 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 hello@bugwiki.app and we will fix it.

More from the same group: Butterflies

Also at home here: Gardens and meadows