Bog Hoverfly vs Eurasian beaver

Eristalis cryptarum compared with Castor fiber

Key Differences

• Bog Hoverfly is Extinct while Eurasian beaver is Vulnerable.

Taxonomic Classification

Rank	Bog Hoverfly	Eurasian beaver
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Diptera (Diptera)	Rodentia (Rodents)
Family	Syrphidae	Castoridae (Beavers)
Genus	Eristalis	Castor (Beavers)
Species	Eristalis cryptarum	Castor fiber

Evolutionary Relationship

Bog Hoverfly and Eurasian beaver share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Bog Hoverfly

EX — Extinct

Eurasian beaver

VU — Vulnerable

Physical Characteristics

Attribute	Bog Hoverfly	Eurasian beaver
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bog Hoverfly

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, 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.

Bog Hoverfly

The Bog Hoverfly (Eristalis cryptarum) is a species in the genus Eristalis. It is currently classified as Extinct on the IUCN Red List. Distributed across Belgium, Denmark, Norway, and Sweden.

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 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden