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Sticker of California sister
Bug card No. 0232 of 1,500

California sister

Adelpha californica
Name means: “it is called a sister because the black and white markings on its wings look like the clothes of a nun”
Eats: Nectar and pollenButterfliesForests and woods6 legs

The California sister is a butterfly with dark wings, wide creamy white bands and two bright orange patches near the wing tips. Underneath, its wings are painted with brown, blue, orange and white. Birds leave it alone, because it tastes bad.

Lives in
California, western Oregon, western Nevada and northern Baja California, in oak woods
Top speed
about 15 km/h (9.3 mph)
Flying, estimate
Can it hurt you?
Harmless
Harmless. It is a gentle butterfly that cannot bite or sting.
What does it eat?
Like other butterflies, the grown-ups sip their food through a long, curly tongue. The caterpillars eat oak leaves, and that makes them taste nasty to predators.
For real!Photo of California sister
Picture by Joe Littlejohn. CC0, via Wikimedia Commons.

How fast is it?

cool stuff

Fun facts

1

Because it tastes bad, several other butterflies have come to look like it, so birds leave them alone too.

2

Growing from an egg into a butterfly takes about 65 days.

3

The mum lays green eggs one at a time on the tips of oak leaves.

4

The caterpillar rests with its front arched and its back end lifted up.

5

Its pupa is pale brown or golden with shiny metallic gold patches.

you asked

Most asked questions about California sister

?Why is it called the California sister?

Its black and white wing markings look like the clothes of a nun, who is also called a sister.

?What does a California sister caterpillar eat?

Oak leaves, mostly from canyon live oak and coast live oak.

?Where can I see a California sister?

In oak woods in California and nearby areas, often flying near the tops of oak trees or near small streams.

For bug experts

Scientific name
Adelpha californica
Named by
Butler, 1865
Group
Butterflies
Family
Nymphalidae
Classification
Insecta > Lepidoptera > Nymphalidae
Lives on
North America

Where the facts come from

  1. Adelpha californica (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 Joe Littlejohn. CC0, 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: Butterflies

Also at home here: Forests and woods