Brassy Willow Beetle vs Brook Floater

Phratora vitellinae compared with Alasmidonta varicosa

Key Differences

• Brassy Willow Beetle is Least Concern while Brook Floater is Vulnerable.

Taxonomic Classification

Rank	Brassy Willow Beetle	Brook Floater
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Mollusca (Mollusks)
Class	Insecta (Insects)	Bivalvia (Bivalvia)
Order	Coleoptera (Beetles)	Unionida (Unionida)
Family	Chrysomelidae	Unionidae
Genus	Phratora	Alasmidonta
Species	Phratora vitellinae	Alasmidonta varicosa

Evolutionary Relationship

Brassy Willow Beetle and Brook Floater share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Brassy Willow Beetle

LC — Least Concern

Brook Floater

VU — Vulnerable

Physical Characteristics

Attribute	Brassy Willow Beetle	Brook Floater
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brassy Willow Beetle

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Iceland, 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.

Brassy Willow Beetle

The Brassy Willow Beetle (Phratora vitellinae) is a species in the genus Phratora. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

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.