Calomycterus setarius
In 3 days ~10% in a week ~20%
Calomycterus setarius, the imported long-horned weevil, is a species of oriental broad-nosed weevil in the beetle family Curculionidae. It is native to Japan, and has become established and common in eastern North America. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Toronto | 🇨🇦 Canada | |
| 2 | Tokyo | 🇯🇵 Japan | |
| 3 | Minneapolis [Saint Paul] | 🇺🇸 United States | |
| 4 | Boston | 🇺🇸 United States | |
| 5 | Montreal | 🇨🇦 Canada | |
| 6 | New York City | 🇺🇸 United States | |
| 7 | Chicago | 🇺🇸 United States | |
| 8 | Washington | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report an Imported Long-Horned Weevil sighting in Tokyo on a given day, based on 20 verified sightings from GBIF citizen-science data. It is the 443rd most-seen of the 1013 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
In that month about 10% of wildlife watchers report an Imported Long-Horned Weevil in Tokyo on a given day, against under 5% in July to May, the lowest months.
Among the best
Of the 8 cities where we can rate Imported Long-Horned Weevil sightings, Tokyo ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Toronto (Canada, under 5%).
Same family: Curculionidae
The closest relatives of the Imported Long-Horned Weevil 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 Imported Long-Horned Weevil is recorded against all the insects logged in Tokyo (20 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.
