Cardinal Click Beetle vs common hydra

Ampedus cardinalis compared with Hydra vulgaris

Key Differences

• Cardinal Click Beetle is Critically Endangered while common hydra is Not Evaluated.

Taxonomic Classification

Rank	Cardinal Click Beetle	common hydra
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Cnidaria (Cnidarians)
Class	Insecta (Insects)	Hydrozoa (Hydrozoa)
Order	Coleoptera (Beetles)	Anthoathecata (Anthoathecata)
Family	Elateridae	Hydridae
Genus	Ampedus	Hydra
Species	Ampedus cardinalis	Hydra vulgaris

Evolutionary Relationship

Cardinal Click Beetle and common hydra share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Cardinal Click Beetle

CR — Critically Endangered

common hydra

NE — Not Evaluated

Physical Characteristics

Attribute	Cardinal Click Beetle	common hydra
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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.

common hydra

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

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.

common hydra

<em>Hydra vulgaris</em>, commonly known as the common hydra, is a small freshwater cnidarian in the family Hydridae. Its conservation status has not been formally evaluated by the IUCN. The species is recorded from Denmark, Norway, and Sweden, with its native range understood to encompass Europe broadly. It typically inhabits slow-moving or still freshwater bodies such as ponds, lakes, and streams, where it attaches to aquatic vegetation or submerged substrates. The common hydra is notable for its remarkable regenerative capabilities and has been the subject of substantial biological research. Diet information for this species is not available in current records. Biological traits of this species remain poorly documented in the scientific literature.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden