Brook Alder vs brown argus

Alnus maritima compared with Aricia agestis

Key Differences

• Brook Alder is Endangered while brown argus is Least Concern.

Taxonomic Classification

Rank	Brook Alder	brown argus
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Arthropoda (Arthropods)
Class	Magnoliopsida (Dicots)	Insecta (Insects)
Order	Fagales (Beeches & Oaks)	Lepidoptera (Butterflies & Moths)
Family	Betulaceae	Lycaenidae
Genus	Alnus	Aricia
Species	Alnus maritima	Aricia agestis

Conservation Status

Brook Alder

EN — Endangered

brown argus

LC — Least Concern

Physical Characteristics

Attribute	Brook Alder	brown argus
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brook Alder

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Distributed across Belgium, France, Netherlands, and United Kingdom. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

brown argus

Habitat

Inhabits Mediterranean forests and woodlands within the Palearctic biogeographic realm.

Range

Found across Asia (Cyprus) and Europe (33 countries).

Brook Alder

The Brook Alder (Alnus maritima) is a species in the genus Alnus. It is currently classified as Endangered on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

brown argus

brown argus (Aricia agestis) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇫🇷 France 🇳🇱 Netherlands 🇬🇧 United Kingdom