Brook Floater vs Small Emerald Spreadwing

Alasmidonta varicosa compared with Lestes virens

Key Differences

• Brook Floater is Vulnerable while Small Emerald Spreadwing is Near Threatened.

Taxonomic Classification

Rank	Brook Floater	Small Emerald Spreadwing
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Arthropoda (Arthropods)
Class	Bivalvia (Bivalvia)	Insecta (Insects)
Order	Unionida (Unionida)	Odonata (Odonata)
Family	Unionidae	Lestidae
Genus	Alasmidonta	Lestes
Species	Alasmidonta varicosa	Lestes virens

Evolutionary Relationship

Brook Floater and Small Emerald Spreadwing share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Brook Floater

VU — Vulnerable

Small Emerald Spreadwing

NT — Near Threatened

Physical Characteristics

Attribute	Brook Floater	Small Emerald Spreadwing
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.

Small Emerald Spreadwing

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Luxembourg, and Sweden. 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.