Arhopalus rusticus
In 3 days ~10% in a week ~20%
Arhopalus rusticus, the rust pine borer, is a species of beetle in the family Cerambycidae. It was described by Carl Linnaeus in his 1758 10th edition of Systema Naturae. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Wadden Sea National Park | 🇩🇪 Germany | |
| 2 | Bavarian Forest National Park | 🇩🇪 Germany |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Copenhagen | 🇩🇰 Denmark | |
| 2 | Helsinki | 🇫🇮 Finland | |
| 3 | Vienna | 🇦🇹 Austria |
Rare
Under 5% of wildlife watchers report a Rust Pine Borer sighting in Helsinki on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 553rd most-seen of the 838 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.
July and August
In those months about 10% of wildlife watchers report a Rust Pine Borer in Helsinki on a given day, against under 5% in September to June, the lowest months.
Between 10 pm and 1 am
Across all the parks we cover, that three-hour window holds the most Rust Pine Borer sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.
Among the best
Of the 3 cities where we can rate Rust Pine Borer sightings, Helsinki ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Copenhagen (Denmark, under 5%).
Same family: Cerambycidae
The closest relatives of the Rust Pine Borer that you can see in Helsinki (family Cerambycidae, Longhorn Beetles) are Musk Beetle (about 10%), Red Pine Longhorn Beetle (about 10%) and Four-Banded Longhorn Beetle (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Rust Pine Borer is recorded against all the insects logged in Helsinki (8 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.
