Sisyra nigra
In 3 days ~10% in a week ~20%
Sisyra nigra is a species of spongillafly in the family Sisyridae. It is found in Europe and Northern Asia (excluding China) and North America. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Black Spongillafly sighting in Berlin on a given day, based on 11 verified sightings from GBIF citizen-science data. It is the 694th most-seen of the 1065 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.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Black Spongillafly in Berlin on a given day, so our monthly data shows no clear season.
Yes
Of the 3 cities where we can rate Black Spongillafly sightings, Berlin has the highest daily chance: under 5%. Next come Paris (France, under 5%) and Moscow (Russia, under 5%).
GBIF citizen-science records
It is estimated from how often the Black Spongillafly is recorded against all the insects logged in Berlin (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.
