Pseudocneorhinus bifasciatus
In 3 days ~20% in a week ~30%
Pseudocneorhinus bifasciatus, the twobanded Japanese weevil, is a species of broad-nosed weevil in the beetle family Curculionidae. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Shenandoah National Park | 🇺🇸 United States | |
| 2 | Great Smoky Mountains National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Nagoya | 🇯🇵 Japan | |
| 2 | Osaka | 🇯🇵 Japan | |
| 3 | Seoul | 🇰🇷 South Korea | |
| 4 | Tokyo | 🇯🇵 Japan | |
| 5 | Boston | 🇺🇸 United States | |
| 6 | Detroit | 🇺🇸 United States | |
| 7 | Washington | 🇺🇸 United States | |
| 8 | Philadelphia | 🇺🇸 United States | |
| 9 | New York City | 🇺🇸 United States | |
| 10 | Chicago | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Two-Banded Japanese Weevil sighting in Tokyo on a given day, based on 78 verified sightings from GBIF citizen-science data. It is the 170th 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 30%, if each day is a fresh chance.
May to October
In those months about 10% of wildlife watchers report a Two-Banded Japanese Weevil in Tokyo on a given day, against under 5% in November to April, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Two-Banded Japanese Weevil sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
4th of 10
Of the 10 cities where we can rate Two-Banded Japanese Weevil sightings, Tokyo ranks 4th at about 10%. The best odds are in Nagoya (Japan, about 20%), Osaka (Japan, about 10%) and Seoul (South Korea, about 10%).
Same family: Curculionidae
The closest relatives of the Two-Banded Japanese 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 Two-Banded Japanese Weevil is recorded against all the insects logged in Tokyo (78 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.
