Alder Spittlebug vs Sharp Rock-bristle

Aphrophora alni compared with Seligeria acutifolia

Key Differences

• Alder Spittlebug is Least Concern while Sharp Rock-bristle is Vulnerable.

Taxonomic Classification

Rank	Alder Spittlebug	Sharp Rock-bristle
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Arthropoda (Arthropods)	Bryophyta
Class	Insecta (Insects)	Bryopsida (Bryopsida)
Order	Hemiptera (Hemiptera)	Grimmiales (Grimmiales)
Family	Aphrophoridae	Seligeriaceae
Genus	Aphrophora	Seligeria
Species	Aphrophora alni	Seligeria acutifolia

Conservation Status

Alder Spittlebug

LC — Least Concern

Sharp Rock-bristle

VU — Vulnerable

Physical Characteristics

Attribute	Alder Spittlebug	Sharp Rock-bristle
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).

Sharp Rock-bristle

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden. Currently classified as Vulnerable 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.

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇸🇪 Sweden