Bibio johannis
In 3 days ~10% in a week ~20%
Bibio johannis is a species of fly in the family Bibionidae. It is found in the Palearctic. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Helsinki | 🇫🇮 Finland | |
| 2 | Birmingham | 🇬🇧 United Kingdom |
Rare
Under 5% of wildlife watchers report a Black Gnat sighting in Helsinki on a given day, based on 11 verified sightings from GBIF citizen-science data. It is the 553rd most-seen of the 838 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.
September
In that month about 10% of wildlife watchers report a Black Gnat in Helsinki on a given day, against under 5% in October to August, the lowest months.
Yes
Of the 2 cities where we can rate Black Gnat sightings, Helsinki has the highest daily chance: under 5%. Next come Birmingham (United Kingdom, under 5%).
GBIF citizen-science records
It is estimated from how often the Black Gnat is recorded against all the insects logged in Helsinki (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.
