Ctesias serra
In 3 days ~10% in a week ~20%
Ctesias serra, commonly known as the cobweb beetle, is a species of beetle native to England in the family Dermestidae. The common name relates to the larva's habit of taking trapped insects from spiderwebs. The preferred habitat is beneath old thick bark. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Cobweb Beetle sighting in Paris on a given day, based on 14 verified sightings from GBIF citizen-science data. It is the 450th 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.
November to January
In those months about 10% of wildlife watchers report a Cobweb Beetle in Paris on a given day, against under 5% in February to October, the lowest months.
Yes
Of the 2 cities where we can rate Cobweb Beetle sightings, Paris has the highest daily chance: under 5%. Next come London (United Kingdom, under 5%).
GBIF citizen-science records
It is estimated from how often the Cobweb Beetle is recorded against all the insects logged in Paris (14 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.
