Silhouette: JCGiron · PhyloPic
Hydrochara affinis
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 Hydrochara affinis sighting in Osaka on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 304th most-seen of the 352 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.
June and August
In those months about 10% of wildlife watchers report a Hydrochara affinis in Osaka on a given day, against under 5% in July and September–May, the lowest months.
Yes
Of the 4 cities where we can rate Hydrochara affinis sightings, Osaka has the highest daily chance: under 5%. Next come Beijing (China, under 5%) and Seoul (South Korea, under 5%).
Same order: Coleoptera
The closest relatives of the Hydrochara affinis that you can see in Osaka (order Coleoptera, Beetles) are Green Chafer (about 20%), Asian Lady Beetle (about 20%) and Japanese Tiger Beetle (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Hydrochara affinis is recorded against all the insects logged in Osaka (5 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.
