Nephrotoma alterna
In 3 days ~10% in a week ~20%
Nephrotoma alterna is a species of large crane fly in the family Tipulidae. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Philadelphia | 🇺🇸 United States | |
| 2 | Boston | 🇺🇸 United States | |
| 3 | Chicago | 🇺🇸 United States | |
| 4 | New York City | 🇺🇸 United States | |
| 5 | Montreal | 🇨🇦 Canada | |
| 6 | Washington | 🇺🇸 United States | |
| 7 | Toronto | 🇨🇦 Canada |
Rare
Under 5% of wildlife watchers report a Nephrotoma alterna sighting in New York City on a given day, based on 19 verified sightings from GBIF citizen-science data. It is the 682nd most-seen of the 1623 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 alterna in New York City on a given day, so our monthly data shows no clear season.
Among the best
Of the 7 cities where we can rate Nephrotoma alterna sightings, New York City ranks 4th at under 5%, level with the leaders once rounded. The best odds are in Philadelphia (United States, under 5%), Boston (United States, under 5%) and Chicago (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Nephrotoma alterna is recorded against all the insects logged in New York City (19 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.
