Brook Floater vs light crimson underwing

Alasmidonta varicosa compared with Catocala promissa

Key Differences

• Brook Floater is Vulnerable while light crimson underwing is Least Concern.

Taxonomic Classification

Rank	Brook Floater	light crimson underwing
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Arthropoda (Arthropods)
Class	Bivalvia (Bivalvia)	Insecta (Insects)
Order	Unionida (Unionida)	Lepidoptera (Butterflies & Moths)
Family	Unionidae	Erebidae
Genus	Alasmidonta	Catocala
Species	Alasmidonta varicosa	Catocala promissa

Evolutionary Relationship

Brook Floater and light crimson underwing share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Brook Floater

VU — Vulnerable

light crimson underwing

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	light crimson underwing
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.

light crimson underwing

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, 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.