Big Dipper Firefly vs Japanese Weasel

Photinus pyralis compared with Mustela itatsi

Key Differences

• Big Dipper Firefly is Least Concern while Japanese Weasel is Near Threatened.

Taxonomic Classification

Rank	Big Dipper Firefly	Japanese Weasel
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Coleoptera (Beetles)	Carnivora (Carnivorans)
Family	Lampyridae	Mustelidae (Weasels & Otters)
Genus	Photinus	Mustela
Species	Photinus pyralis	Mustela itatsi

Evolutionary Relationship

Big Dipper Firefly and Japanese Weasel share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Big Dipper Firefly

LC — Least Concern

Japanese Weasel

NT — Near Threatened

Physical Characteristics

Attribute	Big Dipper Firefly	Japanese Weasel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Big Dipper Firefly

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Canada and United States.

Japanese Weasel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Japan. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Big Dipper Firefly

The Big Dipper Firefly (Photinus pyralis) is a species in the genus Photinus. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.