Blackthorn Mining Bee vs common hydra

Andrena varians compared with Hydra vulgaris

Key Differences

• Blackthorn Mining Bee is Least Concern while common hydra is Not Evaluated.

Taxonomic Classification

Rank	Blackthorn Mining Bee	common hydra
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Cnidaria (Cnidarians)
Class	Insecta (Insects)	Hydrozoa (Hydrozoa)
Order	Hymenoptera (Ants, Bees & Wasps)	Anthoathecata (Anthoathecata)
Family	Andrenidae	Hydridae
Genus	Andrena	Hydra
Species	Andrena varians	Hydra vulgaris

Evolutionary Relationship

Blackthorn Mining Bee and common hydra share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Blackthorn Mining Bee

LC — Least Concern

common hydra

NE — Not Evaluated

Physical Characteristics

Attribute	Blackthorn Mining Bee	common hydra
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blackthorn Mining Bee

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Denmark, Luxembourg, Norway, and Sweden.

common hydra

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

Blackthorn Mining Bee

The Blackthorn Mining Bee (Andrena varians) is a species in the genus Andrena. It is currently classified as Least Concern on the IUCN Red List. Distributed across Denmark, Luxembourg, Norway, and Sweden.

common hydra

<em>Hydra vulgaris</em>, commonly known as the common hydra, is a small freshwater cnidarian in the family Hydridae. Its conservation status has not been formally evaluated by the IUCN. The species is recorded from Denmark, Norway, and Sweden, with its native range understood to encompass Europe broadly. It typically inhabits slow-moving or still freshwater bodies such as ponds, lakes, and streams, where it attaches to aquatic vegetation or submerged substrates. The common hydra is notable for its remarkable regenerative capabilities and has been the subject of substantial biological research. Diet information for this species is not available in current records. Biological traits of this species remain poorly documented in the scientific literature.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden