Nephrotoma scurra
In 3 days ~10% in a week ~20%
Nephrotoma scurra is a species of crane fly found in most of Europe and the East Palearctic. It should not be confused with the crane fly Pselliophora scurra Alexander, 1941, from the subfamily Ctenophorinae. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Saint Petersburg | 🇷🇺 Russia |
Rare
Under 5% of wildlife watchers report a Nephrotoma scurra sighting in Saint Petersburg on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 377th most-seen of the 448 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 Nephrotoma scurra in Saint Petersburg on a given day, so our monthly data shows no clear season.
Only Saint Petersburg, in our data
Saint Petersburg is the only city on Wallace's Line with enough records to rate Nephrotoma scurra sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Nephrotoma scurra is recorded against all the insects logged in Saint Petersburg (5 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.
