Hydrophoria lancifer
In 3 days ~10% in a week ~20%
Hydrophoria lancifer is a species of fly in the family Anthomyiidae. It is found in the Palearctic. For identification see: Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Saint Petersburg | 🇷🇺 Russia | |
| 2 | Moscow | 🇷🇺 Russia |
Rare
Under 5% of wildlife watchers report a Root-Fly sighting in Saint Petersburg on a given day, based on 7 verified sightings from GBIF citizen-science data. It is the 332nd 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 Root-Fly in Saint Petersburg on a given day, so our monthly data shows no clear season.
Yes
Of the 2 cities where we can rate Root-Fly sightings, Saint Petersburg has the highest daily chance: under 5%. Next come Moscow (Russia, under 5%).
Same order: Diptera
The closest relatives of the Root-Fly that you can see in Saint Petersburg (order Diptera, Flies) are Common Drone Fly (about 10%), Marmalade Hover Fly (about 10%) and Sun Fly (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Root-Fly is recorded against all the insects logged in Saint Petersburg (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.
