Iberodorcadion fuliginator
In 3 days ~10% in a week ~30%
Iberodorcadion fuliginator is a species of beetle in the family Cerambycidae. It was described by Carl Linnaeus in his landmark 1758 10th edition of Systema Naturae. It is known from Central Europe: Spain, Belgium, Luxembourg (from where it is considered to be extirpated), Netherlands, Portugal, France, Germany, Austria, Lithuania, and Switzerland.
Iberodorcadion fuliginator is a flightless beetle that feeds on grass. Its range extends from the Iberian Peninsula through Central Europe to Poland and from the southern Netherlands to northern Switzerland. It is highly endangered.
The beetle has a 2-year life cycle. In the spring, eggs are deposited in stems of grass such as Bromus erectus, their main larval host. The larvae hatch in May or June, feed on grass roots, and pupate after winter hibernation. Adults emerge from the pupae in July or August, but remain in the soil until the end of their second winter hibernation. They emerge from the soil in the spring and are sexually active for about a month.
Iberodorcadion has sometimes been considered a subgenus of the genus Dorcadion, resulting in the name Dorcadion fuliginator for this species. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Aigüestortes National Park | 🇪🇸 Spain | |
| 2 | Pyrénées National Park | 🇫🇷 France | |
| 3 | Ordesa y Monte Perdido National Park | 🇪🇸 Spain | |
| 4 | Cévennes National Park | 🇫🇷 France |
Rare
Under 5% of wildlife watchers report an Iberodorcadion fuliginator sighting in Cévennes National Park on a given day, based on 7 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 730th most-seen of the 996 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
April and May
In those months about 10% of wildlife watchers report an Iberodorcadion fuliginator in Cévennes National Park on a given day, against under 5% in June to March, the lowest months.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Iberodorcadion fuliginator sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
4th of 4
Of the 4 parks where we can rate Iberodorcadion fuliginator sightings, Cévennes National Park ranks 4th at under 5%. The best odds are in Aigüestortes National Park (Spain, about 30%), Pyrénées National Park (France, about 20%) and Ordesa y Monte Perdido National Park (Spain, about 10%).
GBIF citizen-science records
It is estimated from how often the Iberodorcadion fuliginator is recorded against all the insects logged in Cévennes National Park (7 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.
