Japanese Green Dock Beetle

Japanese Green Dock Beetle

Gastrophysa atrocyanea

Daily sighting probability <5% · Rare
at Beijing

In 3 days ~10% in a week ~20%

8 Verified sightings at Beijing
April Best month

Global Distribution

Parks Where Found

# Park Country Daily sighting probability

More parks will be added in future updates.

Cities Where Found

# City Country Daily sighting probability
1 Nagoya 🇯🇵 Japan
~10%
2 Tokyo 🇯🇵 Japan
<5%
3 Seoul 🇰🇷 South Korea
<5%
4 Beijing 🇨🇳 China
<5%

Before you go

What are the chances of seeing a Japanese Green Dock Beetle in Beijing?

Rare

Under 5% of wildlife watchers report a Japanese Green Dock Beetle sighting in Beijing on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 260th most-seen of the 401 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.

When is the best time to see a Japanese Green Dock Beetle in Beijing?

March and April

In those months about 10% of wildlife watchers report a Japanese Green Dock Beetle in Beijing on a given day, against under 5% in May to February, the lowest months. Those are among Beijing's driest months, with about 15 mm of rain a month against 150 mm in July.

Is Beijing the best place to see a Japanese Green Dock Beetle?

4th of 4

Of the 4 cities where we can rate Japanese Green Dock Beetle sightings, Beijing ranks 4th at under 5%. The best odds are in Nagoya (Japan, about 10%), Tokyo (Japan, under 5%) and Seoul (South Korea, under 5%).

Which relatives of the Japanese Green Dock Beetle live in Beijing?

Same family: Chrysomelidae

The closest relatives of the Japanese Green Dock Beetle that you can see in Beijing (family Chrysomelidae, Leaf Beetles) are Chrysochus chinensis (about 10%), Oides decempunctata (about 10%) and Small Tortoise Beetle (about 10%), with each one's daily chance of a sighting.

Where does the Japanese Green Dock Beetle sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Japanese Green Dock Beetle is recorded against all the insects logged in Beijing (8 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.

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