Philonicus albiceps
In 3 days ~20% in a week ~30%
Philonicus albiceps is a species of 'robber fly' belonging to the family Asilidae. It is a Palearctic species with a limited distribution in Europe Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Wadden Sea National Park | 🇩🇪 Germany |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Rotterdam [The Hague] | 🇳🇱 Netherlands |
With luck
About 10% of wildlife watchers report a Dune Robber Fly sighting in Rotterdam [The Hague] on a given day, based on 13 verified sightings from GBIF citizen-science data. It is the 196th most-seen of the 355 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.
May to September
In those months about 10% of wildlife watchers report a Dune Robber Fly in Rotterdam [The Hague] on a given day, against under 5% in October to April, the lowest months.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Dune Robber Fly sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Rotterdam [The Hague], in our data
Rotterdam [The Hague] is the only city on Wallace's Line with enough records to rate Dune Robber Fly sightings: about 10% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Dune Robber Fly is recorded against all the insects logged in Rotterdam [The Hague] (13 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.
