---
title: "Oak Marble Gall Wasp"
description: "Andricus kollari — Insetti e ragni. Andricus kollari, also known as the marble gall wasp, is a species of wasp which causes the formation of marble galls on oak trees."
canonical: https://animalchecklist.com/it/animal/oak-marble-gall-wasp
last_updated: 2026-09-20
---

# Oak Marble Gall Wasp

> Andricus kollari — Insetti e ragni. Andricus kollari, also known as the marble gall wasp, is a species of wasp which causes the formation of marble galls on oak trees.

- Scientific name: *Andricus kollari*
- Category: `insects` (Insetti e ragni)
- Habitats: `forest` (Foresta)
- iNaturalist observations: 10779
- Wikidata: [Q2706000](https://www.wikidata.org/wiki/Q2706000)
- iNaturalist taxon: [55600](https://www.inaturalist.org/taxa/55600)

## Names

- en: Oak Marble Gall Wasp
- de: Schwammkugelgallwespe
- es: Gallarita
- fr: Cynips de la galle ronde du chêne
- nl: Knikkergalwesp

## Countries with the most observations

GB (4961), FR (1320), IT (917), NL (470), DE (411), AT (368), DK (179), PT (179), BE (167), ES (167), CZ (149), SK (116)

## Summary

Andricus kollari, also known as the marble gall wasp, is a species of wasp which causes the formation of marble galls on oak trees. Synonyms for the species include Cynips kollari, Andricus quercusgemmae, A. minor, A. indigenus and A. circulans.

Text: Wikipedia (en), CC BY-SA 4.0 — https://en.wikipedia.org/wiki/Andricus_kollari

## Photo

![Oak Marble Gall Wasp](https://animalchecklist.com/img/animals/oak-marble-gall-wasp/medium.jpg)

Photo: Sasha · CC0 · inaturalist — https://www.inaturalist.org/observations/263049785

## Machine access

`GET https://animalchecklist.com/api/v1/animals/oak-marble-gall-wasp?lang=it` — see [openapi.json](https://animalchecklist.com/openapi.json).