Alder Spittlebug vs Bitter Tooth

Aphrophora alni compared with Hydnellum scabrosum

Key Differences

• Alder Spittlebug is Least Concern while Bitter Tooth is Near Threatened.

Taxonomic Classification

Rank	Alder Spittlebug	Bitter Tooth
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Arthropoda (artrópode)	Basidiomycota (Club Fungi)
Class	Insecta (inseto)	Agaricomycetes (Mushrooms)
Order	Hemiptera (Hemiptera)	Thelephorales (Thelephorales)
Family	Aphrophoridae	Bankeraceae
Genus	Aphrophora	Hydnellum
Species	Aphrophora alni	Hydnellum scabrosum

Conservation Status

Alder Spittlebug

LC — Least Concern

Bitter Tooth

NT — Near Threatened

Physical Characteristics

Attribute	Alder Spittlebug	Bitter 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).

Bitter Tooth

Habitat

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

Range

Distributed across Denmark, Norway, and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

Bitter Tooth

The Bitter Tooth (Hydnellum scabrosum) is a species in the genus Hydnellum. It is currently classified as Near Threatened on the IUCN Red List. Typically found in forest floors, decomposing wood, and soil ecosystems.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden