broad-bordered yellow underwing vs Brook Floater

Noctua fimbriata compared with Alasmidonta varicosa

Key Differences

• broad-bordered yellow underwing is Least Concern while Brook Floater is Vulnerable.

Taxonomic Classification

Rank	broad-bordered yellow underwing	Brook Floater
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Mollusca (Mollusks)
Class	Insecta (Insects)	Bivalvia (Bivalvia)
Order	Lepidoptera (Butterflies & Moths)	Unionida (Unionida)
Family	Noctuidae	Unionidae
Genus	Noctua	Alasmidonta
Species	Noctua fimbriata	Alasmidonta varicosa

Evolutionary Relationship

broad-bordered yellow underwing and Brook Floater share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

broad-bordered yellow underwing

LC — Least Concern

Brook Floater

VU — Vulnerable

Physical Characteristics

Attribute	broad-bordered yellow underwing	Brook Floater
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

broad-bordered yellow underwing

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

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.

broad-bordered yellow underwing

The Broad-bordered yellow underwing (Noctua fimbriata) is a species in the genus Noctua. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

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.