Neuroterus anthracinus
In 3 days ~20% in a week ~40%
Neuroterus anthracinus is a widely distributed gall wasp that forms chemically induced leaf galls on oak trees. N. anthracinus has both sexual and agamic generations and in consequence forms two distinct galls, the oyster gall and April-bud gall. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Snowdonia National Park | 🇬🇧 United Kingdom |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | London | 🇬🇧 United Kingdom | |
| 2 | Budapest | 🇭🇺 Hungary | |
| 3 | Liverpool | 🇬🇧 United Kingdom | |
| 4 | Vienna | 🇦🇹 Austria | |
| 5 | Birmingham | 🇬🇧 United Kingdom | |
| 6 | Vancouver | 🇨🇦 Canada | |
| 7 | Manchester | 🇬🇧 United Kingdom | |
| 8 | Helsinki | 🇫🇮 Finland | |
| 9 | Paris | 🇫🇷 France | |
| 10 | Prague | 🇨🇿 Czechia |
With luck
About 10% of wildlife watchers report an Oyster Gall Wasp sighting in Liverpool on a given day, based on 19 verified sightings from GBIF citizen-science data. It is the 375th most-seen of the 632 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.
November
In that month about 20% of wildlife watchers report an Oyster Gall Wasp in Liverpool on a given day, against under 5% in January to June, the lowest months.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Oyster Gall Wasp sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 13 cities where we can rate Oyster Gall Wasp sightings, Liverpool ranks 3rd at about 10%, level with the leaders once rounded. The best odds are in London (United Kingdom, about 10%) and Budapest (Hungary, about 10%).
Same genus: Neuroterus
The closest relatives of the Oyster Gall Wasp that you can see in Liverpool (genus Neuroterus) are Common Spangle Gall Wasp (about 20%), Silk-Button Spangle Gall Wasp (about 20%) and Neuroterus saliens (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Oyster Gall Wasp is recorded against all the insects logged in Liverpool (19 verified sightings), 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.
