Belted spider beetle vs Eurasian beaver

Ptinus bicinctus compared with Castor fiber

Key Differences

• Belted spider beetle is Not Evaluated while Eurasian beaver is Vulnerable.

Taxonomic Classification

Rank	Belted spider beetle	Eurasian beaver
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Coleoptera (Beetles)	Rodentia (Rodents)
Family	Ptinidae	Castoridae (Beavers)
Genus	Ptinus	Castor (Beavers)
Species	Ptinus bicinctus	Castor fiber

Evolutionary Relationship

Belted spider beetle and Eurasian beaver share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Belted spider beetle

NE — Not Evaluated

Eurasian beaver

VU — Vulnerable

Physical Characteristics

Attribute	Belted spider beetle	Eurasian beaver
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Belted spider beetle

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (26 countries) and North America (Canada, United States).

Eurasian beaver

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found across Europe (6 countries). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Belted spider beetle

The Belted spider beetle (Ptinus bicinctus) is a species in the genus Ptinus. Typically found in virtually all terrestrial and freshwater habitats.

Eurasian beaver

Eurasian beaver (Castor fiber) is classified as Vulnerable (VU) on the IUCN Red List. Facing a high risk of endangerment in the wild, with declining populations and increasing habitat pressure.

Shared Countries

Both species can be found in 5 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇷🇺 Russia 🇸🇪 Sweden