Brook Floater vs Cotoneaster Webworm

Alasmidonta varicosa compared with Athrips rancidella

Key Differences

• Brook Floater is Vulnerable while Cotoneaster Webworm is Not Evaluated.

Taxonomic Classification

Rank	Brook Floater	Cotoneaster Webworm
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Arthropoda (Arthropods)
Class	Bivalvia (Bivalvia)	Insecta (Insects)
Order	Unionida (Unionida)	Lepidoptera (Butterflies & Moths)
Family	Unionidae	Gelechiidae
Genus	Alasmidonta	Athrips
Species	Alasmidonta varicosa	Athrips rancidella

Evolutionary Relationship

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

Conservation Status

Brook Floater

VU — Vulnerable

Cotoneaster Webworm

NE — Not Evaluated

Physical Characteristics

Attribute	Brook Floater	Cotoneaster Webworm
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.

Cotoneaster Webworm

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, France, Netherlands, United Kingdom, and 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