Nathrius brevipennis
In 3 days ~20% in a week ~40%
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 |
|---|
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Nathrius brevipennis sighting in Brussels on a given day, based on 14 verified sightings from GBIF citizen-science data. It is the 134th most-seen of the 337 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
March–May, July and September
In those months about 10% of wildlife watchers report a Nathrius brevipennis in Brussels on a given day, against under 5% in June, August and October–February, the lowest months.
Yes
Of the 2 cities where we can rate Nathrius brevipennis sightings, Brussels has the highest daily chance: about 10%. Next come London (United Kingdom, under 5%).
Same family: Cerambycidae
The closest relatives of the Nathrius brevipennis that you can see in Brussels (family Cerambycidae, Longhorn Beetles) are Spotted Longhorn Beetle (about 10%), Common Grammoptera (about 10%) and Red Pine 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 Brussels (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.
