Chestnut Coloured Click Beetle vs Rootless Duckweed

Anostirus castaneus compared with Wolffia arrhiza

Key Differences

Chestnut Coloured Click Beetle is Least Concern while Rootless Duckweed is Endangered.

Taxonomic Classification

Rank	Chestnut Coloured Click Beetle	Rootless Duckweed
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Arthropoda (Arthropods)	Magnoliophyta (Flowering Plants)
Class	Insecta (Insects)	Liliopsida (Monocots)
Order	Coleoptera (Beetles)	Alismatales (Alismatales)
Family	Elateridae	Araceae
Genus	Anostirus	Wolffia
Species	Anostirus castaneus	Wolffia arrhiza

Conservation Status

Chestnut Coloured Click Beetle

LC — Least Concern

Rootless Duckweed

EN — Endangered

Physical Characteristics

Attribute	Chestnut Coloured Click Beetle	Rootless Duckweed
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.

Rootless Duckweed

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, temperate broadleaf and mixed forests, and temperate coniferous forests, among 4 distinct biome types spanning the Indomalayan and Oceanian and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Japan), Europe (10 countries), North America (Canada), and South America (Brazil). Currently classified as 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.