Alder Spittlebug vs Sea Knotgrass

Aphrophora alni compared with Polygonum maritimum

Key Differences

• Alder Spittlebug is Least Concern while Sea Knotgrass is Not Evaluated.

Taxonomic Classification

Rank	Alder Spittlebug	Sea Knotgrass
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Arthropoda (Arthropods)	Magnoliophyta (Flowering Plants)
Class	Insecta (Insects)	Magnoliopsida (Dicots)
Order	Hemiptera (Hemiptera)	Caryophyllales (Caryophyllales)
Family	Aphrophoridae	Polygonaceae
Genus	Aphrophora	Polygonum
Species	Aphrophora alni	Polygonum maritimum

Conservation Status

Alder Spittlebug

LC — Least Concern

Sea Knotgrass

NE — Not Evaluated

Physical Characteristics

Attribute	Alder Spittlebug	Sea Knotgrass
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).

Sea Knotgrass

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Distributed across Chile, India, and Portugal.

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.