Silhouette: Gareth Monger · PhyloPic
Helophilus eristaloideus
In 3 days ~10% in a week ~20%
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Helophilus eristaloideus sighting in Beijing on a given day, based on 10 verified sightings from GBIF citizen-science data. It is the 260th most-seen of the 401 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.
April and October
In those months about 10% of wildlife watchers report a Helophilus eristaloideus in Beijing on a given day, against under 5% in May–September and November–March, the lowest months.
5th of 5
Of the 5 cities where we can rate Helophilus eristaloideus sightings, Beijing ranks 5th at under 5%. The best odds are in Nagoya (Japan, about 10%), Seoul (South Korea, about 10%) and Tokyo (Japan, about 10%).
Same family: Syrphidae
The closest relatives of the Helophilus eristaloideus that you can see in Beijing (family Syrphidae, Hover Flies) are Common Drone Fly (about 10%), Phytomia zonata (about 10%) and Marmalade Hover Fly (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Helophilus eristaloideus is recorded against all the insects logged in Beijing (10 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.
