Alder leaf beetle vs Arrow-Grass

Agelastica alni compared with Triglochin maritima

Key Differences

• Alder leaf beetle is Least Concern while Arrow-Grass is Near Threatened.

Taxonomic Classification

Rank	Alder leaf beetle	Arrow-Grass
Kingdom	Animalia (動物)	Plantae (植物)
Phylum	Arthropoda (節足動物)	Magnoliophyta (被子植物門)
Class	Insecta (昆虫)	Liliopsida (単子葉植物綱)
Order	Coleoptera (コウチュウ目)	Alismatales (オモダカ目)
Family	Chrysomelidae	Juncaginaceae
Genus	Agelastica	Triglochin
Species	Agelastica alni	Triglochin maritima

Conservation Status

Alder leaf beetle

LC — Least Concern

Arrow-Grass

NT — Near Threatened

Physical Characteristics

Attribute	Alder leaf beetle	Arrow-Grass
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.

Arrow-Grass

Habitat

Typically found in grasslands, wetlands, forests, and cultivated landscapes.

Range

Found across Europe (7 countries) and North America (Canada, United States). 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.

Arrow-Grass

The Arrow-Grass, Triglochin maritima, is a species. It is currently assessed as near threatened on the IUCN Red List. Typically found in grasslands, wetlands, forests, and cultivated landscapes.

Shared Countries

Both species can be found in 5 countries:

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