Chestnut Coloured Click Beetle vs Laysan Duck

Anostirus castaneus compared with Anas laysanensis

Key Differences

• Chestnut Coloured Click Beetle is Least Concern while Laysan Duck is Critically Endangered.

Taxonomic Classification

Rank	Chestnut Coloured Click Beetle	Laysan Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Aves (Birds)
Order	Coleoptera (Beetles)	Anseriformes (Anseriformes)
Family	Elateridae	Anatidae
Genus	Anostirus	Anas
Species	Anostirus castaneus	Anas laysanensis

Evolutionary Relationship

Chestnut Coloured Click Beetle and Laysan Duck share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Chestnut Coloured Click Beetle

LC — Least Concern

Laysan Duck

CR — Critically Endangered

Physical Characteristics

Attribute	Chestnut Coloured Click Beetle	Laysan Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Chestnut Coloured Click Beetle

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, Sweden, and Switzerland.

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.

Chestnut Coloured Click Beetle

The Chestnut Coloured Click Beetle (Anostirus castaneus) is a species in the genus Anostirus. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

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.

Shared Countries

Both species can be found in 2 countries:

🇧🇪 Belgium 🇳🇴 Norway