Andricus dentimitratus
In 3 days ~20% in a week ~30%
Andricus dentimitratus is a gall forming wasp in the genus Andricus. The adults lay their eggs on various species of oak and the developing larvae causes the trees to create a large ornate gall. The oaks parasitised include Quercus frainetto, Q. petraea, Q. pyrenaica, Q. pubescens and Q. robur. The gall is formed out of the cup of the acorn. In cross-section it resembles a mushroom. It is woody, maroon, shiny and sticky. It grows up to 25 mm high and 20 mm wide. What resembles the head of the mushroom is lobed or toothed in various ways. The insect emerges from the narrowing, between the head and base. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Pyrénées National Park | 🇫🇷 France |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report an Andricus dentimitratus sighting in Vienna on a given day, based on 60 verified sightings from GBIF citizen-science data. It is the 264th most-seen of the 1406 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.
August to April
In those months about 10% of wildlife watchers report an Andricus dentimitratus in Vienna on a given day, against under 5% in May to July, the lowest months.
Between 2 and 5 pm
Across all the parks we cover, that three-hour window holds the most Andricus dentimitratus sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 2 cities where we can rate Andricus dentimitratus sightings, Vienna ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Rome (Italy, about 10%).
Same genus: Andricus
The closest relatives of the Andricus dentimitratus that you can see in Vienna (genus Andricus) are Knopper Gall Wasp (about 10%), Andricus caputmedusae (about 10%) and Hedgehog Gall Wasp (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Andricus dentimitratus is recorded against all the insects logged in Vienna (60 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.
