Brook Floater vs Dusky Cockroach

Alasmidonta varicosa compared with Ectobius lapponicus

Key Differences

• Brook Floater is Vulnerable while Dusky Cockroach is Not Evaluated.

Taxonomic Classification

Rank	Brook Floater	Dusky Cockroach
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Arthropoda (Arthropods)
Class	Bivalvia (Bivalvia)	Insecta (Insects)
Order	Unionida (Unionida)	Blattodea (Blattodea)
Family	Unionidae	Ectobiidae
Genus	Alasmidonta	Ectobius
Species	Alasmidonta varicosa	Ectobius lapponicus

Evolutionary Relationship

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

Conservation Status

Brook Floater

VU — Vulnerable

Dusky Cockroach

NE — Not Evaluated

Physical Characteristics

Attribute	Brook Floater	Dusky Cockroach
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.

Dusky Cockroach

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, Sweden, 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