Bruchidius siliquastri
In 3 days ~10% in a week ~20%
Bruchidius siliquastri is a species of bean weevil. It was first found in pods of Cercis siliquastrum in China, and has thence been found in several continents. Its length ranges from 2.8 to 3.7 millimetres (0.11 to 0.15 in). Its body is short and ovate, with a black integument. The apex of its femora and the ventral part of its hind tarsi are reddish. Its vestiture is made of thin and short setae; dorsally setae are a whitish colour, denser on the scutellum. Its pygidium is also covered with setae. Its name is derived from its host plant.
The head of the male is short, with bulging eyes. Its frons lacks a carina. Its pronotum is very convex, wider at the base, while the elytra are short; its third stria possesses a small tooth. The hind femora are incrassate, with a carinate mesoventral margin. The hind tibiae are apically widened, with both dorsomesal and ventral carinae that are strong. Its first tarsomere does not have an apical denticle ventrally.
On its abdomen, ventrite 5 is emarginate, as long as the 4th sternite. Its first ventrite has a patch of short erect setae basally, which are somewhat scaly. Its pygidium is subcircular, with its apex turned... 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 Bruchidius siliquastri sighting in Paris on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 592nd most-seen of the 916 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.
August and September
In those months about 10% of wildlife watchers report a Bruchidius siliquastri in Paris on a given day, against under 5% in October to July, the lowest months.
Yes
Of the 2 cities where we can rate Bruchidius siliquastri sightings, Paris has the highest daily chance: under 5%. Next come Vienna (Austria, under 5%).
Same family: Chrysomelidae
The closest relatives of the Bruchidius siliquastri that you can see in Paris (family Chrysomelidae, Leaf Beetles) are Rosemary Beetle (about 10%), Elm Leaf Beetle (about 10%) and Alder Leaf Beetle (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Bruchidius siliquastri is recorded against all the insects logged in Paris (9 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.
