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Sticker of Pink-edged sulphur
Bug card No. 3347 of 4,939

Pink-edged sulphur

Colias interior
Eats: Nectar and pollenButterfliesForests and woods6 legs

The pink-edged sulphur is a bright yellow butterfly with black borders on its wings. All around the edges of its wings runs a thin pink line. It is the official state butterfly of Maine in the United States.

Lives in
Southern Canada and the northern United States, in sunny openings in shrubby forests
Wingspan
3.9 to 6.6 cm (1.5 to 2.6 in)
Top speed
about 16 km/h (9.9 mph)
Flying, estimate
Can it hurt you?
Harmless
Harmless. It cannot bite or sting people, so you can watch it up close.
What does it eat?
The butterflies sip nectar from flowers such as orange hawkweed. The caterpillars eat blueberry leaves.
For real!Photo of Pink-edged sulphur
Picture by Sue Elwell. CC0, via Wikimedia Commons.

How big is it?

How wide are its wings?

Pink-edged sulphur wings about 6.6 cm tip to tip (2.6 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 2 toy building brickscould fly across a whole football pitch in 24 seconds

How big is Pink-edged sulphur compared to YOU?

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How fast is it?

cool stuff

Fun facts

1

The female lays her eggs on blueberry plants, so her caterpillars have food right away.

2

It flies only once a year, between June and August.

3

Each back wing has one spot in the middle.

4

Females have narrower black borders than males.

you asked

Most asked questions about Pink-edged sulphur

?What does the pink-edged sulphur eat?

The butterflies drink nectar, and the caterpillars eat the leaves of blueberries.

?How big is the pink-edged sulphur?

Its wingspan is about 39 to 66 millimetres.

For bug experts

Scientific name
Colias interior
Group
Butterflies
Family
Pieridae
Classification
Insecta > Lepidoptera > Pieridae
Lives on
North America

Where the facts come from

  1. Colias interior (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 Sue Elwell. 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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Also at home here: Forests and woods

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