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Sticker of Gold-fringed mason bee
Bug card No. 1932 of 4,939

Gold-fringed mason bee

Osmia aurulenta
Name means: “the golden one, for its red and gold hair”

The gold-fringed mason bee is a small furry bee with rusty red and golden hair. It does something amazing: it builds its nest inside an empty snail shell. It lives in sunny places on chalky ground across Europe.

Lives in
Europe, Turkey and the Caucasus, on sunny, chalky slopes and pastures
Length
0.8 to 1 cm (0.31 to 0.39 in)
Top speed
about 20 km/h (12 mph)
Flying, estimate
What does it eat?
It drinks nectar and collects pollen from many kinds of flowers, especially from the pea family. The pollen is food for its babies.
For real!Photo of Gold-fringed mason bee
Picture by Arnstein Staverløkk/Norsk institutt for naturforskning. CC BY 3.0, via Wikimedia Commons.

How big is it?

How long is it?

Gold-fringed mason bee about 1 cm long (0.39 in)A grain of rice about 6 mm (0.24 in)A toy building brick about 3.2 cm (1.3 in)
small enough to sit on your fingernailas long as 1.5 grains of rice in a rowcould fly across a whole football pitch in 19 secondsmoves 560 times its own body length every second

How big is Gold-fringed mason bee compared to YOU?

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How fast is it?

cool stuff

Fun facts

1

It likes big empty snail shells best, especially the shells of the large Roman snail.

2

It builds the walls between its baby rooms from chewed leaves, for example strawberry leaves.

3

When the nest is ready, it covers the outside of the shell with chewed plant paste, like a camouflage net.

4

Once the nest is closed, the shell is left exactly where it lies and is not moved again.

5

It flies from March to July, and in Switzerland sometimes until September.

you asked

Most asked questions about Gold-fringed mason bee

?Where does the gold-fringed mason bee make its nest?

Inside an empty snail shell. It splits the shell into little rooms for its babies and hides it with chewed plants.

For bug experts

Scientific name
Osmia aurulenta
Named by
Panzer, 1799
Group
Bees and bumblebees
Family
Megachilidae
Classification
Insecta > Hymenoptera > Megachilidae
Lives on
Europe, Asia

Where the facts come from

  1. Osmia aurulenta (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 Arnstein Staverløkk/Norsk institutt for naturforskning. CC BY 3.0, 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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