Knopper Oak Gall Wasp - Andricus quercuscalicis
A Cynipid gall wasp that causes common and familiar Knopper galls to form on the acorns of various oaks.
[Note that parasitoids and inquilines may also emerge from knopper galls]
There are many similar species of gall wasp
We recommend that the gall-causer is verified by an expert before submitting to NatureSpot - take good photographs, note the host gall and emergence date, and retain a specimen
Knopper galls on oak
A recent introduction to the British Isles, first arriving in the 1960s and now found throughout England, Wales and as far north as Scotland.
Common in Leicestershire and Rutland.
Craig Mabbett
Wistow
13 February 2016
Knopper gall collected 13.2.2016
hatched 18.2.2016
Leicestershire & Rutland Map
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Species profile
- Common names
- Knopper Gall
- Species group:
- Bees, Wasps, Ants
- Kingdom:
- Animalia
- Order:
- Hymenoptera
- Family:
- Cynipidae
- Records on NatureSpot:
- 274
- First record:
- 14/08/2006 (Calow, Graham)
- Last record:
- 15/10/2024 (Isabel Raval)
Total records by month
% of records within its species group
10km squares with records
The latest images and records displayed below include those awaiting verification checks so we cannot guarantee that every identification is correct. Once accepted, the record displays a green tick.
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Latest records
Craig Mabbett
Clump Hill Fields, Broughton Astley
03 October 2015
Knopper gall collected 3.10.2015 <br /> wasp hatched 11.2.2016
