Heath Button vs Foca de Casco

Acleris hyemana compared with Cystophora cristata

Key Differences

• Heath Button is Least Concern while Foca de Casco is Endangered.

Taxonomic Classification

Rank	Heath Button	Foca de Casco
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (artrópodos)	Chordata (cordados)
Class	Insecta (insecto)	Mammalia (mamíferos)
Order	Lepidoptera (Butterflies & Moths)	Pinnipedia (Seals & Sea Lions)
Family	Tortricidae	Phocidae (True Seals)
Genus	Acleris	Cystophora
Species	Acleris hyemana	Cystophora cristata

Evolutionary Relationship

Heath Button and Foca de Casco share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Heath Button

LC — Least Concern

Foca de Casco

EN — Endangered

Physical Characteristics

Attribute	Heath Button	Foca de Casco
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Heath Button

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Foca de Casco

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

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

Shared Countries

Both species can be found in 2 countries:

🇩🇰 Denmark 🇳🇴 Norway