Brook Floater vs Little Gray Firefly

Alasmidonta varicosa compared with Photinus marginellus

Key Differences

• Brook Floater is Vulnerable while Little Gray Firefly is Least Concern.

Taxonomic Classification

Rank	Brook Floater	Little Gray Firefly
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Arthropoda (Arthropods)
Class	Bivalvia (Bivalvia)	Insecta (Insects)
Order	Unionida (Unionida)	Coleoptera (Beetles)
Family	Unionidae	Lampyridae
Genus	Alasmidonta	Photinus
Species	Alasmidonta varicosa	Photinus marginellus

Evolutionary Relationship

Brook Floater and Little Gray Firefly share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Brook Floater

VU — Vulnerable

Little Gray Firefly

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	Little Gray Firefly
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.

Little Gray Firefly

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found in Canada.

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.