Big Water Crayfish vs Cardinal Click Beetle

Cambarus robustus compared with Ampedus cardinalis

Key Differences

• Big Water Crayfish is Least Concern while Cardinal Click Beetle is Critically Endangered.

Taxonomic Classification

Rank	Big Water Crayfish	Cardinal Click Beetle
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Arthropoda (Arthropods)	Arthropoda (Arthropods)
Class	Malacostraca (Crustaceans)	Insecta (Insects)
Order	Decapoda (Decapoda)	Coleoptera (Beetles)
Family	Cambaridae	Elateridae
Genus	Cambarus	Ampedus
Species	Cambarus robustus	Ampedus cardinalis

Evolutionary Relationship

Big Water Crayfish and Cardinal Click Beetle share a common ancestor at the Phylum level: Arthropoda. (Arthropods)

Conservation Status

Big Water Crayfish

LC — Least Concern

Cardinal Click Beetle

CR — Critically Endangered

Physical Characteristics

Attribute	Big Water Crayfish	Cardinal Click Beetle
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Big Water Crayfish

Habitat

Typically found in marine, freshwater, and terrestrial environments.

Range

Found in United States.

Cardinal Click Beetle

Habitat

Inhabits temperate coniferous forests within the Palearctic biogeographic realm.

Range

Distributed across Denmark, Norway, Sweden, and Switzerland. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Big Water Crayfish

The Big Water Crayfish (Cambarus robustus) is a species in the genus Cambarus. It is currently classified as Least Concern on the IUCN Red List. Typically found in marine, freshwater, and terrestrial environments.

Cardinal Click Beetle

The Cardinal Click Beetle (Ampedus cardinalis) is a species in the genus Ampedus. It is currently classified as Critically Endangered (CR) on the IUCN Red List. Inhabits temperate coniferous forests within the Palearctic biogeographic realm.