Brook Floater vs Clouded Yellow

Alasmidonta varicosa compared with Colias croceus

Key Differences

• Brook Floater is Vulnerable while Clouded Yellow is Least Concern.

Taxonomic Classification

Rank	Brook Floater	Clouded Yellow
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Arthropoda (Arthropods)
Class	Bivalvia (Bivalvia)	Insecta (Insects)
Order	Unionida (Unionida)	Lepidoptera (Butterflies & Moths)
Family	Unionidae	Pieridae
Genus	Alasmidonta	Colias
Species	Alasmidonta varicosa	Colias croceus

Evolutionary Relationship

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

Conservation Status

Brook Floater

VU — Vulnerable

Clouded Yellow

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	Clouded Yellow
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.

Clouded Yellow

Habitat

Inhabits Mediterranean forests and woodlands within the Palearctic biogeographic realm.

Range

Found across Asia (Cyprus) and Europe (40 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.

Clouded Yellow

Clouded Yellow (Colias croceus) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.