Anoplophora glabripennis
In 3 days ~10% in a week ~30%
The Asian long-horned beetle (Anoplophora glabripennis), also known as the starry sky, sky beetle, or ALB, is native to the Korean Peninsula, northern and southern China, and disputably in northern Japan. This species has now been accidentally introduced into the eastern United States, where it was first discovered in 1996, as well as Canada, and several countries in Europe, including Austria, France, Germany, Italy and UK.
Common names for Anoplophora glabripennis in Asia are the starry sky beetle, basicosta white-spotted longicorn beetle, or smooth shoulder-longicorn, and it is called the Asian long-horned beetle (ALB) in North America. Adults are very large insects with bodies ranging from 1.7 to 3.9 cm (0.67 to 1.54 in) in length and antennae which can be as long as 4 cm (1.6 in) or 1.5–2 times longer than the body of the insect. They are shiny black with about 20 white spots on each wing cover and long antennae conspicuously banded black and white. These beetles can fly, but generally only for short distances, which is a common limitation for Cerambycidae of their size and weight. The upper sections of the legs of the adults are whitish-blue. A. glabripennis... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report an Asian Longhorned Beetle sighting in Beijing on a given day, based on 18 verified sightings from GBIF citizen-science data. It is the 143rd 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 30%, if each day is a fresh chance.
June to August
In those months about 10% of wildlife watchers report an Asian Longhorned Beetle in Beijing on a given day, against under 5% in September to May, the lowest months. Those are among Beijing's wettest months, with about 110 mm of rain a month against almost none in January.
Between 4 and 7 pm
Across all the parks we cover, that three-hour window holds the most Asian Longhorned Beetle sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 4 cities where we can rate Asian Longhorned Beetle sightings, Beijing ranks 3rd at about 10%, level with the leaders once rounded. The best odds are in Nagoya (Japan, about 10%) and Kunming (China, about 10%).
GBIF citizen-science records
It is estimated from how often the Asian Longhorned Beetle is recorded against all the insects logged in Beijing (18 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.
