Alder Spittlebug vs Giant Knapweed

Aphrophora alni compared with Centaurea macroptilon

Key Differences

• Alder Spittlebug is Least Concern while Giant Knapweed is Not Evaluated.

Taxonomic Classification

Rank	Alder Spittlebug	Giant Knapweed
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Arthropoda (Arthropods)	Magnoliophyta (Flowering Plants)
Class	Insecta (Insects)	Magnoliopsida (Dicots)
Order	Hemiptera (Hemiptera)	Asterales (Daisies & Sunflowers)
Family	Aphrophoridae	Asteraceae (Daisy Family)
Genus	Aphrophora	Centaurea
Species	Aphrophora alni	Centaurea macroptilon

Conservation Status

Alder Spittlebug

LC — Least Concern

Giant Knapweed

NE — Not Evaluated

Physical Characteristics

Attribute	Alder Spittlebug	Giant Knapweed
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).

Giant Knapweed

Habitat

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

Range

Found across Europe (9 countries).

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 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden