Silhouette: Janat Graham (photograph), T. Michael Keesey (vectorization) · PhyloPic
Alcides trifidus
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 an Alcides trifidus sighting in Seoul on a given day, based on 7 verified sightings from GBIF citizen-science data. It is the 353rd most-seen of the 525 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.
May and July
In those months about 10% of wildlife watchers report an Alcides trifidus in Seoul on a given day, against under 5% in June and August–April, the lowest months. Those are among Seoul's wettest months, with about 220 mm of rain a month against 20 mm in January.
3rd of 3
Of the 3 cities where we can rate Alcides trifidus sightings, Seoul ranks 3rd at under 5%. The best odds are in Nagoya (Japan, about 10%) and Tokyo (Japan, about 10%).
Same family: Curculionidae
The closest relatives of the Alcides trifidus that you can see in Seoul (family Curculionidae, True Weevils) are Two-Banded Japanese Weevil (about 10%) and Enaptorhinus granulatus (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Alcides trifidus is recorded against all the insects logged in Seoul (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.
