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Acanthoscelides obtectus
In 3 days ~10% in a week ~20%
Acanthoscelides obtectus, the bean weevil, is a species of bruchid beetle. The species was described in 1831 by Thomas Say. Bean weevils feed primarily on the seeds of common beans but also feed on the seeds of peas, vetches, and many other leguminous plants. They have also been reported to develop on the seeds of a few non-legumes, such as maize and buckwheat. Bean weevils are pests of legume seeds both in field and in storage. Only the larvae feed on seeds: the adults feed on pollen.
Originating in mountainous regions of northern South America, it has been inadvertently introduced to Central America, then around the world in grain shipments. American naturalist Thomas Say described the bean weevil species as Bruchus obtectus in 1831, and was later moved to the genus Acanthoscelides. In a 1870 publication John Lawrence LeConte mistakenly called it Bruchus obsoletus, which led several later author to call it under this name which in fact belonged to another species, and as a result references to A. obtectus in publications from the late 1800 and early 1900 often used the incorrect name Bruchus obsoletus.
Bean weevils are small beetles, ranging in size... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kyiv | 🇺🇦 Ukraine |
Rare
Under 5% of wildlife watchers report a Bean Weevil sighting in Kyiv on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 591st most-seen of the 753 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–February and October–November
In those months about 10% of wildlife watchers report a Bean Weevil in Kyiv on a given day, against under 5% in March–September and December, the lowest months.
Only Kyiv, in our data
Kyiv is the only city on Wallace's Line with enough records to rate Bean Weevil sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Chrysomelidae
The closest relatives of the Bean Weevil that you can see in Kyiv (family Chrysomelidae, Leaf Beetles) are Knotweed Leaf Beetle (about 10%), Willow Clytra (about 10%) and Violet Leaf Beetle (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Bean Weevil is recorded against all the insects logged in Kyiv (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.
