Alder leaf beetle vs Redshouldered ham beetle

Agelastica alni compared with Necrobia ruficollis

Key Differences

• Alder leaf beetle is Least Concern while Redshouldered ham beetle is Endangered.

Taxonomic Classification

Rank	Alder leaf beetle	Redshouldered ham 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	Chrysomelidae	Cleridae
Genus	Agelastica	Necrobia
Species	Agelastica alni	Necrobia ruficollis

Evolutionary Relationship

Alder leaf beetle and Redshouldered ham beetle share a common ancestor at the Order level: Coleoptera. (Beetles)

Conservation Status

Alder leaf beetle

LC — Least Concern

Redshouldered ham beetle

EN — Endangered

Physical Characteristics

Attribute	Alder leaf beetle	Redshouldered ham 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.

Redshouldered ham beetle

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, temperate coniferous forests, and temperate broadleaf and mixed forests, among 8 distinct biome types spanning the Indomalayan and Oceanian and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (China, Japan, Taiwan), Europe (12 countries), and North America (Canada, United States). Currently classified as 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 5 countries:

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