Brook Floater vs Fir twig scale

Alasmidonta varicosa compared with Eulecanium sericeum

Key Differences

• Brook Floater is Vulnerable while Fir twig scale is Not Evaluated.

Taxonomic Classification

Rank	Brook Floater	Fir twig scale
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Arthropoda (Arthropods)
Class	Bivalvia (Bivalvia)	Insecta (Insects)
Order	Unionida (Unionida)	Hemiptera (Hemiptera)
Family	Unionidae	Coccidae
Genus	Alasmidonta	Eulecanium
Species	Alasmidonta varicosa	Eulecanium sericeum

Evolutionary Relationship

Brook Floater and Fir twig scale share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Brook Floater

VU — Vulnerable

Fir twig scale

NE — Not Evaluated

Physical Characteristics

Attribute	Brook Floater	Fir twig scale
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.

Fir twig scale

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across 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.