Euthycera chaerophylli
In 3 days ~10% in a week ~20%
Euthycera chaerophylli is a species of fly in the family Sciomyzidae, the marsh flies or snail-killing flies. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Pyrénées National Park | 🇫🇷 France |
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Euthycera chaerophylli sighting in Pyrénées National Park on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 1144th most-seen of the 1277 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
August
In that month about 10% of wildlife watchers report a Euthycera chaerophylli in Pyrénées National Park on a given day, against under 5% in September to July, the lowest months.
Between 3 and 6 pm
Across all the parks we cover, that three-hour window holds the most Euthycera chaerophylli sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Only Pyrénées National Park, in our data
Pyrénées National Park is the only park on Wallace's Line with enough records to rate Euthycera chaerophylli sightings: under 5% of wildlife watchers there report one on a given day.
Same order: Diptera
The closest relatives of the Euthycera chaerophylli that you can see in Pyrénées National Park (order Diptera, Flies) are Common Drone Fly (about 10%), Tapered Drone Fly (about 10%) and Beech Gall Midge (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Euthycera chaerophylli is recorded against all the insects logged in Pyrénées 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.
