Eucorynus crassicornis
In 3 days ~10% in a week ~20%
Eucorynus crassicornis is a species of fungus weevil in the beetle family Anthribidae, which was first described in 1801 by Johan Christian Fabricius as Anthribus crassicornis, from specimen(s) collected in Sumatra. It has been found in South Korea (Jeju Island), Japan, Far East Russia, China, Taiwan, Thailand, Malaysia, Singapore, the Philippines, India, and Australia.
In Indonesia, this weevil damages the pods and seeds of the legume crops Crotalaria striata, other Crotalaria species, and those of Leucaena leucocephala. In Kerala, it has been found to be a major destroyer of stored bamboo. Wikipedia →
| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Eucorynus crassicornis sighting in Shanghai on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 185th most-seen of the 215 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.
January, May and August
In those months about 10% of wildlife watchers report a Eucorynus crassicornis in Shanghai on a given day, against under 5% in February–April, June–July and September–December, the lowest months.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Eucorynus crassicornis sightings with a recorded time, and about 7 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
7th of 9
Of the 9 cities where we can rate Eucorynus crassicornis sightings, Shanghai ranks 7th at under 5%. The best odds are in Nanjing (China, about 10%), Hangzhou (China, about 10%) and Manila (Philippines, about 10%).
Same order: Coleoptera
The closest relatives of the Eucorynus crassicornis that you can see in Shanghai (order Coleoptera, Beetles) are Titan Stag Beetle (about 20%), Six-Spotted Zigzag Ladybird (about 20%) and Oriental Flower Beetle (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Eucorynus crassicornis is recorded against all the insects logged in Shanghai (5 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.
