🐝 Ants, Bees & Wasps

Gall Wasp

Andricus quercuscalicis

About Gall Wasp

A tiny wasp that induces knopper galls on oak acorns, deforming them completely.

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Did You Know?

It has alternating sexual and asexual generations that produce different gall types.

How to Identify Gall Wasp

Gall Wasp (Andricus quercuscalicis) belongs to the order Hymenoptera, family Cynipidae. Adults typically measure 3-4 mm.

Gall Wasp Habitat

Gall Wasp is found in woodlands habitats, particularly across Europe. This species has adapted to thrive in its preferred environment, where it can find suitable food sources and shelter.

Gall Wasp Diet and Feeding

Gall Wasp induces galls on plants and feeds within them. Gall-making insects trigger abnormal plant growth that provides both food and shelter for their developing larvae.

Where Is Gall Wasp Found?

Gall Wasp can be found in Europe, where it inhabits woodlands environments. Its distribution is influenced by climate, food availability, and habitat suitability.

Distribution Map

Where Gall Wasp can be found

Is Gall Wasp Dangerous?

Gall Wasp belongs to the order Hymenoptera, which includes many stinging insects. While not typically aggressive, it may sting if threatened or handled. Stings can cause pain and swelling, and in rare cases may trigger allergic reactions in sensitive individuals.

Gall Wasp Role in Nature

Gall Wasp is part of the food web as a primary consumer, feeding on plant material. It serves as an important food source for birds, bats, amphibians, and other insectivores, connecting plant energy to higher trophic levels.

Seasonal Activity

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Peak activity Moderate Low / dormant

Frequently Asked Questions About Gall Wasp

What does Gall Wasp look like?

The Gall Wasp typically measures 3-4 mm.

Where is Gall Wasp found?

The Gall Wasp is found in Europe and typically inhabits woodlands environments.

What does Gall Wasp eat?

The Gall Wasp induces galls on plants and feeds within them.

Is Gall Wasp dangerous to humans?

The Gall Wasp belongs to the order Hymenoptera, which includes stinging insects. While not typically aggressive, it may sting if threatened or handled.

What is an interesting fact about Gall Wasp?

It has alternating sexual and asexual generations that produce different gall types.

Cite This Page

APA:
InsectDiscover. (2026). Gall Wasp (Andricus quercuscalicis). Retrieved from https://insectdiscover.com/insect/gall-wasp

MLA:
"Gall Wasp." InsectDiscover, https://insectdiscover.com/insect/gall-wasp.