Brook Floater vs Green Immigrant Leaf Weevil

Alasmidonta varicosa compared with Polydrusus formosus

Key Differences

• Brook Floater is Vulnerable while Green Immigrant Leaf Weevil is Least Concern.

Taxonomic Classification

Rank	Brook Floater	Green Immigrant Leaf Weevil
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Arthropoda (Arthropods)
Class	Bivalvia (Bivalvia)	Insecta (Insects)
Order	Unionida (Unionida)	Coleoptera (Beetles)
Family	Unionidae	Curculionidae
Genus	Alasmidonta	Polydrusus
Species	Alasmidonta varicosa	Polydrusus formosus

Evolutionary Relationship

Brook Floater and Green Immigrant Leaf Weevil share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Brook Floater

VU — Vulnerable

Green Immigrant Leaf Weevil

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	Green Immigrant Leaf Weevil
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.

Green Immigrant Leaf Weevil

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Widely distributed across Asia (Turkey), Europe (31 countries), and North America (Canada, United States).

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.

Shared Countries

Both species can be found in 1 countries:

🇺🇸 United States