skip to content

#3381 · 🪲 beetles

Blackspotted Longhorn Beetle

🇳🇱 Gemarmerde eikenbok ·Rhagium mordax

🪲 Beetles 📍 in the Netherlands
Blackspotted Longhorn Beetle, photo 1 of 10
1/10 © Corinna Herr · CC BY-NC 4.0

what is it?

The black-spotted longhorn beetle ( Rhagium mordax )) is a species of the Lepturinae subfamily in the long-horned beetle family. This beetle is distributed in Albania, Austria, Belgium, Bulgaria, Croatia, Czech Republic, Denmark, Finland, France, Germany, Hungary, Italy, Kazakhstan, Luxembourg, Netherlands, Norway, Poland, Romania, Russia, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey, and the United Kingdom. Larvae develop in silver fir, hazel, European weeping birch, European beech, and the European chestnut. Ischnoceros rusticus is a parasitoid wasp from...

base stats

  • NL sightings 39iNaturalist, research grade
  • worldwide 8,292iNaturalist observations

Bars compare against all animals on log scales: up to 300,000 Dutch and 600,000 worldwide sightings (the most-seen species), 150 t (blue whale), 30 m and 400 years (Greenland shark).

fun facts

  • Spotted 39 times in the Netherlands on iNaturalist.
  • 8,292 observations worldwide on iNaturalist.

fact sheet

English
Blackspotted Longhorn Beetle
Nederlands
Gemarmerde eikenbok
scientific name
Rhagium mordax
class
Insecta
order
Coleoptera
family
Cerambycidae
sightings in NL
39
sightings in Europe
7,812
sightings worldwide
8,292
GBIF records in NL
1,458
weight
—
length
—
lifespan
—

relatives· Cerambycidae

Sources: iNaturalist taxon 320109, Wikidata Q248328, GBIF 9128025, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.

stan runge 76bfb3d source