Brook Floater vs cottony hydrangea scale

Alasmidonta varicosa compared with Pulvinaria hydrangeae

Key Differences

• Brook Floater is Vulnerable while cottony hydrangea scale is Not Evaluated.

Taxonomic Classification

Rank	Brook Floater	cottony hydrangea 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	Pulvinaria
Species	Alasmidonta varicosa	Pulvinaria hydrangeae

Evolutionary Relationship

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

Conservation Status

Brook Floater

VU — Vulnerable

cottony hydrangea scale

NE — Not Evaluated

Physical Characteristics

Attribute	Brook Floater	cottony hydrangea 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.

cottony hydrangea scale

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (7 countries).

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.