Alder leaf beetle vs limestone fern

Agelastica alni compared with Gymnocarpium robertianum

Key Differences

• Alder leaf beetle is Least Concern while limestone fern is Critically Endangered.

Taxonomic Classification

Rank	Alder leaf beetle	limestone fern
Kingdom	Animalia (животные)	Plantae (растения)
Phylum	Arthropoda (членистоногие)	Tracheophyta
Class	Insecta (насекомые)	Polypodiopsida (папоротниковые)
Order	Coleoptera (жесткокрылые)	Polypodiales (многоножковые)
Family	Chrysomelidae	Cystopteridaceae
Genus	Agelastica	Gymnocarpium
Species	Agelastica alni	Gymnocarpium robertianum

Conservation Status

Alder leaf beetle

LC — Least Concern

limestone fern

CR — Critically Endangered

Physical Characteristics

Attribute	Alder leaf beetle	limestone fern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Alder leaf beetle

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, Sweden, and United States.

limestone fern

Habitat

Typically found in moist, shaded forest floors and tropical canopies.

Range

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

Alder leaf beetle

The Alder leaf beetle (Agelastica alni) is a species in the genus Agelastica. 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