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Sticker of Grey hairstreak
Bug card No. 0697 of 1,500

Grey hairstreak

Strymon melinus
Eats: Nectar and pollenButterfliesGardens and meadows6 legs

The grey hairstreak is a small grey butterfly with an orange spot on its back wings. Its back wings end in thin little tails. When it sits, it wiggles these tails so they look like a second head, which tricks birds into pecking at the wrong end.

Lives in
Almost all of North America, and Central and northern South America
Wingspan
2 to 3.2 cm (0.79 to 1.3 in)
Top speed
about 11 km/h (6.8 mph)
Flying, estimate
Can it hurt you?
Harmless
Harmless. It is a small, gentle butterfly.
What does it eat?
The grown-ups drink nectar. The caterpillars eat clovers, mallows and bean plants. Young ones eat the flowers and older ones the leaves.
For real!Photo of Grey hairstreak
Picture by TheMilkMan13. CC BY 4.0, via Wikimedia Commons.

How big is it?

How wide are its wings?

Grey hairstreak wings about 3.2 cm tip to tip (1.3 in)A grain of rice about 6 mm (0.24 in)A toy building brick about 3.2 cm (1.3 in)A crayon about 9 cm (3.5 in)
wings as wide as 5 grains of rice in a rowcould fly across a whole football pitch in 34 seconds

How big is Grey hairstreak compared to YOU?

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How fast is it?

cool stuff

Fun facts

1

If a bird bites the fake head, the butterfly loses a bit of wing but can still fly away.

2

Its caterpillar is green and covered in short yellow hairs.

3

Ants look after its caterpillars.

4

It is one of the most common hairstreaks in North America.

5

It lives almost anywhere: rainforests, mountains, meadows, farms and even cities.

you asked

Most asked questions about Grey hairstreak

?How big is the grey hairstreak?

Its wings are about 2 to 3 centimetres from tip to tip.

?What does the grey hairstreak caterpillar eat?

Clovers, mallows and bean plants.

?Why does the grey hairstreak wiggle its tails?

The tails look like a head, so birds attack the wing instead of the real head.

For bug experts

Scientific name
Strymon melinus
Group
Butterflies
Family
Lycaenidae
Classification
Insecta > Lepidoptera > Lycaenidae
Lives on
North America, South America
Also known as
Gray hairstreak, Bean lycaenid, Cotton square borer

Where the facts come from

  1. Gray hairstreak (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 TheMilkMan13. CC BY 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: Butterflies

Also at home here: Gardens and meadows