Alder Spittlebug vs Rosette Tooth

Aphrophora alni compared with Hydnellum cumulatum

Key Differences

Alder Spittlebug is Least Concern while Rosette Tooth is Critically Endangered.

Taxonomic Classification

Rank	Alder Spittlebug	Rosette Tooth
Kingdom	Animalia (動物)	Fungi (菌界)
Phylum	Arthropoda (節足動物)	Basidiomycota (担子菌門)
Class	Insecta (昆虫)	Agaricomycetes (真正担子菌綱)
Order	Hemiptera (カメムシ目)	Thelephorales (イボタケ目)
Family	Aphrophoridae	Bankeraceae
Genus	Aphrophora	Hydnellum
Species	Aphrophora alni	Hydnellum cumulatum

Conservation Status

Alder Spittlebug

LC — Least Concern

Rosette Tooth

CR — Critically Endangered

Physical Characteristics

Attribute	Alder Spittlebug	Rosette Tooth
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Alder Spittlebug

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (5 countries) and North America (United States).

Rosette Tooth

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Distributed across Denmark, Norway, and Sweden. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Alder Spittlebug

The Alder Spittlebug (Aphrophora alni) is a species in the genus Aphrophora. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.