Hartigiola annulipes
In 3 days ~20% in a week ~50%
Hartigiola annulipes is a species of midge fly in the family Cecidomyiidae, found in the Palearctic. The fly was first described by Theodor Hartig in 1839. The larvae gall the leaves of beech (Fagus species). Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 2 | Cévennes National Park | 🇫🇷 France |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Liverpool | 🇬🇧 United Kingdom | |
| 2 | Birmingham | 🇬🇧 United Kingdom | |
| 3 | London | 🇬🇧 United Kingdom | |
| 4 | Leeds | 🇬🇧 United Kingdom | |
| 5 | Manchester | 🇬🇧 United Kingdom | |
| 6 | Berlin | 🇩🇪 Germany | |
| 7 | Paris | 🇫🇷 France | |
| 8 | Copenhagen | 🇩🇰 Denmark |
With luck
About 10% of wildlife watchers report a Hairy Beech Gall sighting in Bavarian Forest National Park on a given day, based on 19 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 269th most-seen of the 1115 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
September
In that month about 20% of wildlife watchers report a Hairy Beech Gall in Bavarian Forest National Park on a given day, against under 5% in November to June, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Hairy Beech Gall sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 2 parks where we can rate Hairy Beech Gall sightings, Bavarian Forest National Park has the highest daily chance: about 10%. Next come Cévennes National Park (France, about 10%).
Same family: Cecidomyiidae
The closest relatives of the Hairy Beech Gall that you can see in Bavarian Forest National Park (family Cecidomyiidae, Gall and Forest Midges) are Beech Gall Midge (about 10%) and Willow Rose Gall Midge (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Hairy Beech Gall is recorded against all the insects logged in Bavarian Forest National Park (19 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.
