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Sticker of Oak curved-leaf gall wasp
Bug card No. 3062 of 4,939

Oak curved-leaf gall wasp

Andricus curvator
Eats: PlantsWasps and hornetsForests and woods6 legs

The oak curved-leaf gall wasp is a tiny wasp that makes oak trees build little homes for its babies. The tree grows a small ball, called a gall, around each egg. The young wasp lives and grows safely inside it.

Lives in
Most of Europe, from Ireland to Ukraine, wherever oak trees grow
Top speed
about 22 km/h (14 mph)
Flying, estimate
What does it eat?
Its babies grow inside the galls on oak trees and feed on the tree there.
For real!Photo of Oak curved-leaf gall wasp
Picture by Lairich Rig. CC BY-SA 2.0, via Wikimedia Commons.

How fast is it?

cool stuff

Fun facts

1

Its galls on oak leaves are round balls about 8 millimetres across. They can make the leaf bend.

2

It has two different families in one year. The spring wasps lay eggs on leaves, and the summer wasps lay eggs on buds.

3

The bud gall is only 3 millimetres long and shaped like a skittle. It hides between the bud scales.

4

The young wasp spends the whole winter inside its gall and comes out in spring.

5

Its galls have been found on eight different kinds of oak trees.

you asked

Most asked questions about Oak curved-leaf gall wasp

?What is an oak gall?

A small ball that an oak tree grows around a gall wasp egg. The young wasp lives inside it.

?Where does the oak curved-leaf gall wasp live?

In most of Europe, wherever oak trees grow.

For bug experts

Scientific name
Andricus curvator
Named by
Hartig, 1840
Group
Wasps and hornets
Family
Cynipidae
Classification
Insecta > Hymenoptera > Cynipidae
Lives on
Europe

Where the facts come from

  1. Andricus curvator (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 Lairich Rig. CC BY-SA 2.0, 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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More from the same group: Wasps and hornets

Also at home here: Forests and woods

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