Anoplophora chinensis
In 3 days ~60% in a week ~90%
Anoplophora chinensis, the citrus long-horned beetle (also appearing in many sources as Anoplophora malasiaca), is a long-horned beetle native to Japan, China, Korea, Taiwan and Southeast Asia where it is considered a serious pest. This beetle has invaded several countries in Europe, including Italy, Switzerland, Turkey, France, Germany, and Croatia.
Infestations by the beetle can kill many different types of hardwood trees including Citrus, pecan, apple, Australian pine, Hibiscus, sycamore, willow, pear, mulberry, chinaberry, poplar, Litchi, kumquat, Japanese red cedar, oak, and Ficus.
Anoplophora chinensis is native to most parts of China and Korea, as well as Vietnam, Malaysia, Indonesia, and the Philippines. However, this beetle is characterized as an invasive species in many parts of the world, including countries in Europe such as Italy, as it has been able to be transported to additional geographic regions by burrowing into shipments from Asia to countries in Europe. It makes its way into shipments that contain plants or wood and burrows into them.
The citrus long-horned beetle was first discovered in the U.S. in April 1999... Wikipedia →
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More parks will be added in future updates.
Possible
About 30% of wildlife watchers report a Citrus Longhorn Beetle sighting in Xi'an on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 6th most-seen of the 9 insects we can rate there. Over three days the chance rises to about 60%, and over a week to about 90%, if each day is a fresh chance.
June
In that month about 50% of wildlife watchers report a Citrus Longhorn Beetle in Xi'an on a given day, against under 5% in March–April, July–August and October, the lowest months. That is one of Xi'an's wettest months, with about 85 mm of rain against 5 mm in December.
Among the best
Of the 26 cities where we can rate Citrus Longhorn Beetle sightings, Xi'an ranks 2nd at about 30%, level with the leaders once rounded. The best odds are in Guiyang (China, about 30%).
Same order: Coleoptera
The closest relatives of the Citrus Longhorn Beetle that you can see in Xi'an (order Coleoptera, Beetles) are Asian Lady Beetle (about 30%) and Seven-Spotted Lady Beetle (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Citrus Longhorn Beetle is recorded against all the insects logged in Xi'an (6 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.
