Nephrotoma cornicina
In 3 days ~10% in a week ~20%
Nephrotoma cornicina is a species of fly in the family Tipulidae. These flies mainly inhabit turf grass and hedge rows. Nephrotoma cornicina can reach a body length of 12–15 millimetres (0.47–0.59 in) and a wing length of 11–15 millimetres (0.43–0... Wikipedia →
| # | Park | Country | Daily sighting probability |
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Rare
Under 5% of wildlife watchers report a Nephrotoma cornicina sighting in Saint Petersburg on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 272nd 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.
July
In that month about 10% of wildlife watchers report a Nephrotoma cornicina in Saint Petersburg on a given day, against under 5% in August to June, the lowest months. That is one of Saint Petersburg's wettest months, with about 100 mm of rain against 40 mm in February.
6th of 8
Of the 8 cities where we can rate Nephrotoma cornicina sightings, Saint Petersburg ranks 6th at under 5%. The best odds are in Montreal (Canada, about 10%), Toronto (Canada, about 10%) and Detroit (United States, about 10%).
GBIF citizen-science records
It is estimated from how often the Nephrotoma cornicina is recorded against all the insects logged in Saint Petersburg (9 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.
