Knopper Gall Andricus quercuscalicis created on acorns in the autumn by a single agamic wasp

- Image ID: B7MN1E
Knopper Gall Andricus quercuscalicis created on acorns in the autumn by a single agamic wasp
Les Gibbon / Alamy Stock Photo
Image ID: B7MN1E
Location: North Cliffe Woods Yorkshire Wildlife Trust Nature Reserve East Yorkshire UK