Brook Floater vs Cantharid beetle

Alasmidonta varicosa compared with Cantharis nigra

Key Differences

• Brook Floater is Vulnerable while Cantharid beetle is Near Threatened.

Taxonomic Classification

Rank	Brook Floater	Cantharid beetle
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Arthropoda (Arthropods)
Class	Bivalvia (Bivalvia)	Insecta (Insects)
Order	Unionida (Unionida)	Coleoptera (Beetles)
Family	Unionidae	Cantharidae
Genus	Alasmidonta	Cantharis
Species	Alasmidonta varicosa	Cantharis nigra

Evolutionary Relationship

Brook Floater and Cantharid beetle share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Brook Floater

VU — Vulnerable

Cantharid beetle

NT — Near Threatened

Physical Characteristics

Attribute	Brook Floater	Cantharid beetle
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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.

Cantharid beetle

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (5 countries) and North America (United States). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

Cantharid beetle

The Cantharid beetle (Cantharis nigra) is a species in the genus Cantharis. It is currently classified as Near Threatened on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

Shared Countries

Both species can be found in 1 countries:

🇺🇸 United States