Brook Floater vs Orange-Spotted Drone Fly

Alasmidonta varicosa compared with Eristalis anthophorina

Key Differences

• Brook Floater is Vulnerable while Orange-Spotted Drone Fly is Least Concern.

Taxonomic Classification

Rank	Brook Floater	Orange-Spotted Drone 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	Eristalis
Species	Alasmidonta varicosa	Eristalis anthophorina

Evolutionary Relationship

Brook Floater and Orange-Spotted Drone Fly share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Brook Floater

VU — Vulnerable

Orange-Spotted Drone Fly

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	Orange-Spotted Drone 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.

Orange-Spotted Drone Fly

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across 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