Brook Floater vs Lesser Bulb Fly

Alasmidonta varicosa compared with Eumerus narcissi

Key Differences

• Brook Floater is Vulnerable while Lesser Bulb Fly is Data Deficient.

Taxonomic Classification

Rank	Brook Floater	Lesser Bulb Fly
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Arthropoda (Arthropods)
Class	Bivalvia (Bivalvia)	Insecta (Insects)
Order	Unionida (Unionida)	Diptera (Diptera)
Family	Unionidae	Syrphidae
Genus	Alasmidonta	Eumerus
Species	Alasmidonta varicosa	Eumerus narcissi

Evolutionary Relationship

Brook Floater and Lesser Bulb Fly share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Brook Floater

VU — Vulnerable

Lesser Bulb Fly

DD — Data Deficient

Physical Characteristics

Attribute	Brook Floater	Lesser Bulb Fly
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.

Lesser Bulb Fly

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found in 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