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Sticker of Fraternal potter wasp
Bug card No. 0544 of 1,500

Fraternal potter wasp

Eumenes fraternus

The fraternal potter wasp is a black wasp with little ivory spots and a very thin waist. It is a tiny potter. The mother builds a little round pot out of mud, like a clay jug, for each of her babies.

Lives in
Eastern United States and Canada, in clearings, shrubby places and forest edges
Length
1.5 to 2 cm (0.59 to 0.79 in)
Top speed
about 25 km/h (16 mph)
Flying, estimate
What does it eat?
The grown-up wasp drinks nectar and eats pollen from flowers. Its babies eat a caterpillar that their mother puts in the pot.
For real!Photo of Fraternal potter wasp
Picture by Pollinator. CC BY-SA 3.0, via Wikimedia Commons.

How big is it?

How long is it?

Fraternal potter wasp about 2 cm long (0.79 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)
as long as 3 grains of rice in a rowcould fly across a whole football pitch in 15 secondsmoves 350 times its own body length every second

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cool stuff

Fun facts

1

Building one pot can take one or two hours and needs several hundred little balls of wet mud.

2

The mother hangs her egg inside the pot on a fine thread.

3

She puts a sleeping caterpillar in the pot as food, then closes the top with mud.

4

Its body starts with a long, thin stalk that gets wider towards the back.

5

It flies from about April to November.

you asked

Most asked questions about Fraternal potter wasp

?Why is it called a potter wasp?

Because the mother builds little pots out of mud for her babies.

?How big is the fraternal potter wasp?

It is about 1.5 to 2 centimetres long.

For bug experts

Scientific name
Eumenes fraternus
Named by
Say, 1824
Group
Wasps and hornets
Family
Vespidae
Classification
Insecta > Hymenoptera > Vespidae
Lives on
North America

Where the facts come from

  1. Eumenes fraternus (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 Pollinator. 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 [email protected] and we will fix it.

More from the same group: Wasps and hornets

Also at home here: Gardens and meadows