Eristalinus arvorum
In 3 days ~10% in a week ~30%
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report an Eristalinus arvorum sighting in Chennai on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 284th most-seen of the 376 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
May–July and December
In those months about 10% of wildlife watchers report an Eristalinus arvorum in Chennai on a given day, against under 5% in January–April and August–November, the lowest months.
5th of 9
Of the 9 cities where we can rate Eristalinus arvorum sightings, Chennai ranks 5th at under 5%. The best odds are in Prayagraj (India, about 10%), Changsha (China, about 10%) and Kolkata (India, about 10%).
GBIF citizen-science records
It is estimated from how often the Eristalinus arvorum is recorded against all the insects logged in Chennai (8 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.
