Aceria thomasi
A rounded rosette gall formed from leaves and buds at the shoot-tips of wild Thyme (Thymus polytrichus). The mites live inside the long dense white hairs on and inside the gall.
Photograph the gall in situ; ensure you have noted the host-plant and included this in the photos
Grassland (limestone grassland in VC55)
Widespread, common (Redfern & Shirley 2023)
Rare. Up to 2025, it has only been recorded from Ketton and Bloody Oaks quarries
Leicestershire & Rutland Map
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MAP KEY:
Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2025+ | 2020-2024 | pre-2020
UK Map
Species profile
- Species group:
- Mites, Ticks & Pseudoscorpions
- Kingdom:
- Order:
- Family:
- Records on NatureSpot:
- 1
- First record:
- 09/07/2025 (Timms, Sue)
- Last record:
- 09/07/2025 (Timms, Sue)
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.
In the Latest Records section, click on the header to sort A-Z, and again to sort Z-A. Use the header boxes to filter the list.



