Brook Floater vs Dusky Spreadwing

Alasmidonta varicosa compared with Lestes concinnus

Key Differences

• Brook Floater is Vulnerable while Dusky Spreadwing is Least Concern.

Taxonomic Classification

Rank	Brook Floater	Dusky 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 concinnus

Evolutionary Relationship

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

Conservation Status

Brook Floater

VU — Vulnerable

Dusky Spreadwing

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	Dusky 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.

Dusky Spreadwing

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found in Taiwan.

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.