Brook Floater vs Common blowfly

Alasmidonta varicosa compared with Calliphora grahami

Key Differences

• Brook Floater is Vulnerable while Common blowfly is Least Concern.

Taxonomic Classification

Rank	Brook Floater	Common blowfly
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Arthropoda (Arthropods)
Class	Bivalvia (Bivalvia)	Insecta (Insects)
Order	Unionida (Unionida)	Diptera (Diptera)
Family	Unionidae	Calliphoridae
Genus	Alasmidonta	Calliphora
Species	Alasmidonta varicosa	Calliphora grahami

Evolutionary Relationship

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

Conservation Status

Brook Floater

VU — Vulnerable

Common blowfly

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	Common blowfly
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.

Common blowfly

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.

Common blowfly

The common blowfly (<em>Calliphora grahami</em>) is a fly species found across the United States, typically inhabiting all terrestrial and freshwater environments. As a member of the family Calliphoridae, this species often plays an important ecological role as a decomposer and pollinator across its range. The common blowfly is classified as Least Concern on the IUCN Red List, indicating a stable population with no immediate threat of extinction. Its diet includes decaying organic matter, making it a significant contributor to nutrient cycling in its native habitats. The species is commonly associated with a wide variety of terrestrial ecosystems, from open grasslands to forested areas, and is often found near human settlements. Biological traits of this species remain poorly documented in the scientific literature.

Shared Countries

Both species can be found in 1 countries:

🇺🇸 United States