Brook Floater vs Lesser Emperor

Alasmidonta varicosa compared with Anax parthenope

Key Differences

• Brook Floater is Vulnerable while Lesser Emperor is Not Evaluated.

Taxonomic Classification

Rank	Brook Floater	Lesser Emperor
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Arthropoda (Arthropods)
Class	Bivalvia (Bivalvia)	Insecta (Insects)
Order	Unionida (Unionida)	Odonata (Odonata)
Family	Unionidae	Aeshnidae
Genus	Alasmidonta	Anax
Species	Alasmidonta varicosa	Anax parthenope

Evolutionary Relationship

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

Conservation Status

Brook Floater

VU — Vulnerable

Lesser Emperor

NE — Not Evaluated

Physical Characteristics

Attribute	Brook Floater	Lesser Emperor
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.

Lesser Emperor

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (6 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.