Black-bellied Clusterfly vs Eurasian beaver

Pollenia amentaria compared with Castor fiber

Key Differences

• Black-bellied Clusterfly is Least Concern while Eurasian beaver is Vulnerable.

Taxonomic Classification

Rank	Black-bellied Clusterfly	Eurasian beaver
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Diptera (Diptera)	Rodentia (Rodents)
Family	Polleniidae	Castoridae (Beavers)
Genus	Pollenia	Castor (Beavers)
Species	Pollenia amentaria	Castor fiber

Evolutionary Relationship

Black-bellied Clusterfly and Eurasian beaver share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Black-bellied Clusterfly

LC — Least Concern

Eurasian beaver

VU — Vulnerable

Physical Characteristics

Attribute	Black-bellied Clusterfly	Eurasian beaver
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-bellied Clusterfly

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Denmark, Norway, and Sweden.

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.

Black-bellied Clusterfly

The Black-bellied Clusterfly (Pollenia amentaria) is a species in the genus Pollenia. It is currently classified as Least Concern on the IUCN Red List. 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 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden