Mikiola fagi
In 3 days ~70% in a week ~90%
Mikiola fagi, the beech gall midge is a gall-causing fly in the family Cecidomyiidae. This species was first described by Theodor Hartig in 1839. According to observations of the species aggregated on GBIF, this fly spreads across Europe. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Plitvice Lakes National Park | 🇭🇷 Croatia | |
| 2 | Triglav National Park | 🇸🇮 Slovenia | |
| 3 | Ordesa y Monte Perdido National Park | 🇪🇸 Spain | |
| 4 | Aigüestortes National Park | 🇪🇸 Spain | |
| 5 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 6 | Picos de Europa National Park | 🇪🇸 Spain | |
| 7 | Cévennes National Park | 🇫🇷 France | |
| 8 | Pyrénées National Park | 🇫🇷 France |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Manchester | 🇬🇧 United Kingdom | |
| 2 | Leeds | 🇬🇧 United Kingdom | |
| 3 | Copenhagen | 🇩🇰 Denmark | |
| 4 | Essen | 🇩🇪 Germany | |
| 5 | Munich | 🇩🇪 Germany | |
| 6 | Cologne | 🇩🇪 Germany | |
| 7 | Hamburg | 🇩🇪 Germany | |
| 8 | Berlin | 🇩🇪 Germany | |
| 9 | Prague | 🇨🇿 Czechia | |
| 10 | Brussels | 🇧🇪 Belgium |
Possible
About 30% of wildlife watchers report a Beech Gall Midge sighting in Plitvice Lakes National Park on a given day, based on 16 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 13th most-seen of the 51 insects we can rate there. Over three days the chance rises to about 70%, and over a week to about 90%, if each day is a fresh chance.
October
In that month about 50% of wildlife watchers report a Beech Gall Midge in Plitvice Lakes National Park on a given day, against under 5% in April, the lowest month. December has too few records to rate.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Beech Gall Midge 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 8 parks where we can rate Beech Gall Midge sightings, Plitvice Lakes National Park has the highest daily chance: about 30%. Next come Triglav National Park (Slovenia, about 30%) and Ordesa y Monte Perdido National Park (Spain, about 20%).
Same order: Diptera
The closest relatives of the Beech Gall Midge that you can see in Plitvice Lakes National Park (order Diptera, Flies) are Pellucid Hover Fly (about 20%) and Marmalade Hover Fly (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Beech Gall Midge is recorded against all the insects logged in Plitvice Lakes National Park (16 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.
