Alder Spittlebug vs Smooth hound

Aphrophora alni compared with Triakis maculata

Key Differences

• Alder Spittlebug is Least Concern while Smooth hound is Critically Endangered.

Taxonomic Classification

Rank	Alder Spittlebug	Smooth hound
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Chondrichthyes (Cartilaginous Fish)
Order	Hemiptera (Hemiptera)	Carcharhiniformes (Ground Sharks)
Family	Aphrophoridae	Triakidae
Genus	Aphrophora	Triakis
Species	Aphrophora alni	Triakis maculata

Evolutionary Relationship

Alder Spittlebug and Smooth hound share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Alder Spittlebug

LC — Least Concern

Smooth hound

CR — Critically Endangered

Physical Characteristics

Attribute	Alder Spittlebug	Smooth hound
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).

Smooth hound

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate grasslands and steppes, and montane grasslands and shrublands, among 5 distinct biome types within the Neotropic biogeographic realm.

Range

Found in Chile. 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.