Ephemera glaucops
In 3 days ~10% in a week ~20%
Ephemera is a genus of mayfly in the family Ephemeridae. It contains the following species: Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Paris | 🇫🇷 France |
Rare
Under 5% of wildlife watchers report a Four-Lined Giant Mayfly sighting in Paris on a given day, based on 11 verified sightings from GBIF citizen-science data. It is the 519th most-seen of the 916 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.
June
In that month about 10% of wildlife watchers report a Four-Lined Giant Mayfly in Paris on a given day, against under 5% in July to May, the lowest months.
Only Paris, in our data
Paris is the only city on Wallace's Line with enough records to rate Four-Lined Giant Mayfly sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Four-Lined Giant Mayfly is recorded against all the insects logged in Paris (11 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.
