Brook Floater vs Cabbage Stem Weavil

Alasmidonta varicosa compared with Ceutorhynchus pallidactylus

Key Differences

• Brook Floater is Vulnerable while Cabbage Stem Weavil is Least Concern.

Taxonomic Classification

Rank	Brook Floater	Cabbage Stem Weavil
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	Ceutorhynchus
Species	Alasmidonta varicosa	Ceutorhynchus pallidactylus

Evolutionary Relationship

Brook Floater and Cabbage Stem Weavil share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Brook Floater

VU — Vulnerable

Cabbage Stem Weavil

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	Cabbage Stem Weavil
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.

Cabbage Stem Weavil

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Canada, Denmark, Norway, Portugal, 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.

Cabbage Stem Weavil

The Cabbage Stem Weavil (Ceutorhynchus pallidactylus) is a species in the genus Ceutorhynchus. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.