Bog Hoverfly vs Laysan Duck

Eristalis cryptarum compared with Anas laysanensis

Key Differences

Bog Hoverfly is Extinct while Laysan Duck is Critically Endangered.

Taxonomic Classification

Rank	Bog Hoverfly	Laysan Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Aves (Birds)
Order	Diptera (Diptera)	Anseriformes (Anseriformes)
Family	Syrphidae	Anatidae
Genus	Eristalis	Anas
Species	Eristalis cryptarum	Anas laysanensis

Evolutionary Relationship

Bog Hoverfly and Laysan Duck share a common ancestor at the Kingdom level: Animalia. (Animals)

View Kingdom: Animalia

Conservation Status

Bog Hoverfly

EX — Extinct

Laysan Duck

CR — Critically Endangered

Physical Characteristics

Attribute	Bog Hoverfly	Laysan Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bog Hoverfly

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Laysan Duck

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Belgium, France, Netherlands, Norway, and United Kingdom. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Bog Hoverfly

The Bog Hoverfly (Eristalis cryptarum) is a species in the genus Eristalis. It is currently classified as Extinct on the IUCN Red List. Distributed across Belgium, Denmark, Norway, and Sweden.

Laysan Duck

Laysan Duck (Anas laysanensis) is classified as Critically Endangered (CR) on the IUCN Red List. Facing an extremely high risk of extinction in the wild due to severe population decline and habitat loss.