Chalcophora japonica
In 3 days ~10% in a week ~20%
Chalcophora japonica, or ubatamamushi in Japanese (Japanese kanji: 姥玉虫, katakana: ウバタマムシ; lit. 'nanny jewel bug'), also known as the flat-headed wood-borer, is a metallic, bullet-shaped, woodboring beetle of the Buprestidae family. It is endemic to Japan. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Guiyang | 🇨🇳 China | |
| 2 | Xiamen City | 🇨🇳 China | |
| 3 | Osaka | 🇯🇵 Japan | |
| 4 | Tokyo | 🇯🇵 Japan | |
| 5 | Hong Kong | 🇨🇳 China |
Rare
Under 5% of wildlife watchers report a Chalcophora japonica sighting in Tokyo on a given day, based on 16 verified sightings from GBIF citizen-science data. It is the 509th 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.
February
In that month about 10% of wildlife watchers report a Chalcophora japonica in Tokyo on a given day, against under 5% in March to January, the lowest months. That is one of Tokyo's driest months, with about 75 mm of rain against 250 mm in October.
4th of 5
Of the 5 cities where we can rate Chalcophora japonica sightings, Tokyo ranks 4th at under 5%. The best odds are in Guiyang (China, about 30%), Xiamen City (China, about 20%) and Osaka (Japan, under 5%).
GBIF citizen-science records
It is estimated from how often the Chalcophora japonica is recorded against all the insects logged in Tokyo (16 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.
