Systoechus ctenopterus
In 3 days ~10% in a week ~20%
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Vienna | 🇦🇹 Austria |
Rare
Under 5% of wildlife watchers report a Systoechus ctenopterus sighting in Vienna on a given day, based on 12 verified sightings from GBIF citizen-science data. It is the 838th most-seen of the 1406 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.
July and August
In those months about 10% of wildlife watchers report a Systoechus ctenopterus in Vienna on a given day, against under 5% in September to June, the lowest months. Those are among Vienna's wettest months, with about 85 mm of rain a month against 40 mm in February.
Only Vienna, in our data
Vienna is the only city on Wallace's Line with enough records to rate Systoechus ctenopterus sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Bombyliidae
The closest relatives of the Systoechus ctenopterus that you can see in Vienna (family Bombyliidae, Bee Flies) are Greater Bee Fly (about 10%) and Black Banded Bee Fly (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Systoechus ctenopterus is recorded against all the insects logged in Vienna (12 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.
