California alder vs small tortoiseshell

Alnus rhombifolia compared with Aglais urticae

Key Differences

  • California alder is Least Concern while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank California alder small tortoiseshell
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 Nymphalidae (Brush-footed Butterflies)
Genus Alnus Aglais
Species Alnus rhombifolia Aglais urticae

Conservation Status

California alder

LC — Least Concern

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute California alder small tortoiseshell
Diet
Average Lifespan
Average Length
Average Weight

Habitat & Geographic Range

California alder

Habitat

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

Range

Found in Canada.

small tortoiseshell

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (41 countries). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

California alder

The California alder (Alnus rhombifolia) is a species in the genus Alnus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

small tortoiseshell

small tortoiseshell (Aglais urticae) is classified as Near Threatened (NT) on the IUCN Red List. Close to qualifying as threatened, with populations that may become vulnerable without conservation action.

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