Trichocera annulata
In 3 days ~10% in a week ~20%
Trichocera annulata, commonly known as the winter gnat, is a species of winter crane fly, of the order Diptera. First described by German entomologist Johann Wilhelm Meigen in 1818, it is found in Europe and North America. In North America, it is known from Alaska south to California and in Newfoundland. It is an introduced species in New Zealand. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Portland | 🇺🇸 United States | |
| 2 | Paris | 🇫🇷 France | |
| 3 | Seattle | 🇺🇸 United States | |
| 4 | Washington | 🇺🇸 United States | |
| 5 | Melbourne | 🇦🇺 Australia | |
| 6 | New York City | 🇺🇸 United States | |
| 7 | San Francisco | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Winter Gnat sighting in Paris on a given day, based on 7 verified sightings from GBIF citizen-science data. It is the 743rd most-seen of the 916 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.
October and November
In those months about 10% of wildlife watchers report a Winter Gnat in Paris on a given day, against under 5% in December to September, the lowest months.
Among the best
Of the 7 cities where we can rate Winter Gnat sightings, Paris ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Portland (United States, under 5%).
Same order: Diptera
The closest relatives of the Winter Gnat that you can see in Paris (order Diptera, Flies) are Marmalade Hover Fly (about 30%), Yellow-Haired Sun Fly (about 20%) and Hornet Mimic Hover Fly (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Winter Gnat is recorded against all the insects logged in Paris (7 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.
