Nathrius brevipennis
In 3 days ~10% in a week ~20%
Nathrius brevipennis is a species of beetle in family Cerambycidae. It is found (and originated) in the Palearctic but has been spreading by commerce (with timber and wood packaging) and is now cosmopolitan. It is 4–7 mm. long. It is polyphagous on dead twigs of dominantly broadleaved trees (Alnus, Rosa, Fraxinus, Corylus, Ficus, Castanea, Salix, Juglans, Quercus, Morus, Cornus, Ceratonia, Pistacia, Ziziphus, Robinia Ostrya) 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 Nathrius brevipennis sighting in London on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 1109th most-seen of the 1504 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.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Nathrius brevipennis in London on a given day, so our monthly data shows no clear season.
2nd of 2
Of the 2 cities where we can rate Nathrius brevipennis sightings, London ranks 2nd at under 5%. The best odds are in Brussels (Belgium, about 10%).
Same family: Cerambycidae
The closest relatives of the Nathrius brevipennis that you can see in London (family Cerambycidae, Longhorn Beetles) are Spotted Longhorn Beetle (about 10%), Common Grammoptera (about 10%) and Fairy-Ring Longhorn Beetle (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Nathrius brevipennis is recorded against all the insects logged in London (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.
