Alder Spittlebug vs limestone fern

Aphrophora alni compared with Gymnocarpium robertianum

Key Differences

• Alder Spittlebug is Least Concern while limestone fern is Critically Endangered.

Taxonomic Classification

Rank	Alder Spittlebug	limestone fern
Kingdom	Animalia (Animals)	Plantae (planta)
Phylum	Arthropoda (artrópodos)	Tracheophyta
Class	Insecta (insecto)	Polypodiopsida (Polypodiopsida)
Order	Hemiptera (Hemiptera)	Polypodiales (Polypodiales)
Family	Aphrophoridae	Cystopteridaceae
Genus	Aphrophora	Gymnocarpium
Species	Aphrophora alni	Gymnocarpium robertianum

Conservation Status

Alder Spittlebug

LC — Least Concern

limestone fern

CR — Critically Endangered

Physical Characteristics

Attribute	Alder Spittlebug	limestone fern
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).

limestone fern

Habitat

Typically found in moist, shaded forest floors and tropical canopies.

Range

Distributed across Belgium, Canada, 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.

Shared Countries

Both species can be found in 3 countries:

🇧🇪 Belgium 🇳🇴 Norway 🇸🇪 Sweden