What are the chances of seeing a Bombylella atra in Cévennes National Park?
With luck
About 10% of wildlife watchers report a Bombylella atra sighting in Cévennes National Park on a given day, based on 11 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 555th most-seen of the 996 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
When is the best time to see a Bombylella atra in Cévennes National Park?
May and June
In those months about 10% of wildlife watchers report a Bombylella atra in Cévennes National Park on a given day, against under 5% in July to April, the lowest months.
What time of day is best to see a Bombylella atra?
Between 1 and 4 pm
Across all the parks we cover, that three-hour window holds the most Bombylella atra sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Is Cévennes National Park the best place to see a Bombylella atra?
Yes
Of the 3 parks where we can rate Bombylella atra sightings, Cévennes National Park has the highest daily chance: about 10%. Next come Sierra de Guadarrama National Park (Spain, about 10%) and Pyrénées National Park (France, under 5%).
Which relatives of the Bombylella atra live in Cévennes National Park?
Same family: Bombyliidae
The closest relatives of the Bombylella atra that you can see in Cévennes National Park (family Bombyliidae, Bee Flies) are Black Banded Bee Fly (about 10%) and Hemipenthes velutina (about 10%), with each one's daily chance of a sighting.
Where does the Bombylella atra sighting chance come from?
GBIF citizen-science records
It is estimated from how often the Bombylella atra is recorded against all the insects logged in Cévennes National Park (11 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.