Silhouette: Janat Graham (photograph), T. Michael Keesey (vectorization) · PhyloPic
Alcides trifidus
In 3 days ~20% in a week ~40%
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report an Alcides trifidus sighting in Tokyo on a given day, based on 112 verified sightings from GBIF citizen-science data. It is the 142nd most-seen of the 1013 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
April–June and August–November
In those months about 10% of wildlife watchers report an Alcides trifidus in Tokyo on a given day, against under 5% in July and December–March, the lowest months.
Among the best
Of the 3 cities where we can rate Alcides trifidus sightings, Tokyo ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Nagoya (Japan, about 10%).
Same family: Curculionidae
The closest relatives of the Alcides trifidus that you can see in Tokyo (family Curculionidae, True Weevils) are Eugnathus distinctus (about 10%), Vegetable Weevil (about 10%) and Dermatoxenus caesicollis (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 Tokyo (112 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.
