Blackthorn Mining Bee vs Brook Floater

Andrena varians compared with Alasmidonta varicosa

Key Differences

• Blackthorn Mining Bee is Least Concern while Brook Floater is Vulnerable.

Taxonomic Classification

Rank	Blackthorn Mining Bee	Brook Floater
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Mollusca (Mollusks)
Class	Insecta (Insects)	Bivalvia (Bivalvia)
Order	Hymenoptera (Ants, Bees & Wasps)	Unionida (Unionida)
Family	Andrenidae	Unionidae
Genus	Andrena	Alasmidonta
Species	Andrena varians	Alasmidonta varicosa

Evolutionary Relationship

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

Conservation Status

Blackthorn Mining Bee

LC — Least Concern

Brook Floater

VU — Vulnerable

Physical Characteristics

Attribute	Blackthorn Mining Bee	Brook Floater
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.

Brook Floater

Habitat

Native to North America, inhabiting ecosystems characteristic of the region.

Range

Found in United States. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

Brook Floater

The Brook Floater (Alasmidonta varicosa) is a species in the genus Alasmidonta. It is currently classified as Vulnerable on the IUCN Red List. Native to North America, inhabiting ecosystems characteristic of the region.