Cynips quercusfolii
In 3 days ~20% in a week ~40%
Cynips quercusfolii, also known as the cherry gall wasp and common oak gall wasp, is a gall wasp species in the genus Cynips and family Cynipidae. The species is important for the production of commercial nutgall formed on Quercus lusitanica (the gall oak).
Galls are located on the underside of leaves, with the majority of galls being on the second and third veins from the petiole of the leaf. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Białowieża National Park | 🇵🇱 Poland | |
| 2 | Gauja National Park | 🇱🇻 Latvia | |
| 3 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 4 | Fertő-Hanság National Park | 🇭🇺 Hungary | |
| 5 | Wadden Sea National Park | 🇩🇪 Germany | |
| 6 | Cévennes National Park | 🇫🇷 France |
With luck
About 10% of wildlife watchers report a Cherry Gall Wasp sighting in Fertő-Hanság National Park on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 199th most-seen of the 243 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
February and November
In those months about 30% of wildlife watchers report a Cherry Gall Wasp in Fertő-Hanság National Park on a given day, against under 5% in March, May–September and December–January, the lowest months.
Between 2 and 5 pm
Across all the parks we cover, that three-hour window holds the most Cherry Gall Wasp sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
4th of 6
Of the 6 parks where we can rate Cherry Gall Wasp sightings, Fertő-Hanság National Park ranks 4th at about 10%. The best odds are in Białowieża National Park (Poland, about 20%), Gauja National Park (Latvia, about 20%) and Bavarian Forest National Park (Germany, about 10%).
Same family: Cynipidae
The closest relatives of the Cherry Gall Wasp that you can see in Fertő-Hanság National Park (family Cynipidae, Gall Wasps) are Mossy Rose Gall Wasp (about 10%), Andricus quercustozae (about 10%) and Andricus coriarius (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Cherry Gall Wasp is recorded against all the insects logged in Fertő-Hanság National Park (5 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
