Chestnut Coloured Click Beetle vs Small Adder's-Tongue

Anostirus castaneus compared with Ophioglossum azoricum

Key Differences

• Chestnut Coloured Click Beetle is Least Concern while Small Adder's-Tongue is Critically Endangered.

Taxonomic Classification

Rank	Chestnut Coloured Click Beetle	Small Adder's-Tongue
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Arthropoda (Arthropods)	Tracheophyta
Class	Insecta (Insects)	Polypodiopsida (Polypodiopsida)
Order	Coleoptera (Beetles)	Ophioglossales (Ophioglossales)
Family	Elateridae	Ophioglossaceae
Genus	Anostirus	Ophioglossum
Species	Anostirus castaneus	Ophioglossum azoricum

Conservation Status

Chestnut Coloured Click Beetle

LC — Least Concern

Small Adder's-Tongue

CR — Critically Endangered

Physical Characteristics

Attribute	Chestnut Coloured Click Beetle	Small Adder's-Tongue
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.

Small Adder's-Tongue

Habitat

Inhabits boreal forests and taiga within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Belgium, Iceland, Norway, Portugal, and Sweden. 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.

Shared Countries

Both species can be found in 3 countries:

🇧🇪 Belgium 🇳🇴 Norway 🇸🇪 Sweden