Acanthocinus aedilis
In 3 days ~30% in a week ~50%
The timberman beetle (Acanthocinus aedilis) is a species of woodboring beetle belonging to the longhorn beetle family. It is found in woodlands, with a large distribution through Europe, Russia and Central Asia. It is also known as the Siberian Timberman due to its range extending northwards in to Siberia. In Finnish this species is known as Sarvijaakko, in Dutch as Timmerboktor and in Swedish as Större Timmerman. Despite a few sources suggesting reports in Central America, no confirmed reports were available at time of editing (May, 2020). The species is also not listed as invasive in North America.
The body length ranges from 12-20mm, with antennae up for 3 times the body length in males, or 1.5 times the body length in females. The beetles grow to be 12 to 20 millimeters long. The ground is brown with fine grey-brown hairs (tomentum) on the dorsum, which creates an irregular pattern, making them hard to spot on bark. On the pronotum, which is wider than it is long and has a pointed bump on each side, there are four small yellow tomentum spots visible. The body is elongated. The etytra are short part of the posterior abdomen is exposed. The elytra also have two... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Białowieża National Park | 🇵🇱 Poland | |
| 2 | Cévennes National Park | 🇫🇷 France | |
| 3 | Pyrénées National Park | 🇫🇷 France |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kyiv | 🇺🇦 Ukraine |
With luck
About 10% of wildlife watchers report a Timberman sighting in Białowieża National Park on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 131st most-seen of the 158 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
March to May
In those months about 20% of wildlife watchers report a Timberman in Białowieża National Park on a given day, against under 5% in July to February, the lowest months.
Between 4 and 7 pm
Across all the parks we cover, that three-hour window holds the most Timberman sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 3 parks where we can rate Timberman sightings, Białowieża National Park has the highest daily chance: about 10%. Next come Cévennes National Park (France, under 5%) and Pyrénées National Park (France, under 5%).
Same family: Cerambycidae
The closest relatives of the Timberman that you can see in Białowieża National Park (family Cerambycidae, Longhorn Beetles) are The Tanner (about 40%), Red Pine Longhorn Beetle (about 30%) and Four-Banded Longhorn Beetle (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Timberman is recorded against all the insects logged in Białowieża National Park (5 verified sightings from 2019 to 2026), 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.
