Alder leaf beetle vs Saint John'S Wort Beetle

Agelastica alni compared with Chrysolina hyperici

Key Differences

• Alder leaf beetle is Least Concern while Saint John'S Wort Beetle is Near Threatened.

Taxonomic Classification

Rank	Alder leaf beetle	Saint John'S Wort Beetle
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Arthropoda (Arthropods)	Arthropoda (Arthropods)
Class same	Insecta (Insects)	Insecta (Insects)
Order same	Coleoptera (Beetles)	Coleoptera (Beetles)
Family same	Chrysomelidae	Chrysomelidae
Genus	Agelastica	Chrysolina
Species	Agelastica alni	Chrysolina hyperici

Evolutionary Relationship

Alder leaf beetle and Saint John'S Wort Beetle share a common ancestor at the Family level: Chrysomelidae.

Conservation Status

Alder leaf beetle

LC — Least Concern

Saint John'S Wort Beetle

NT — Near Threatened

Physical Characteristics

Attribute	Alder leaf beetle	Saint John'S Wort Beetle
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.

Saint John'S Wort Beetle

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Widely distributed across Europe (5 countries), North America (United States), and South America (Chile). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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 5 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States