Black scale vs California alder

Saissetia oleae compared with Alnus rhombifolia

Key Differences

• Black scale is Not Evaluated while California alder is Least Concern.

Taxonomic Classification

Rank	Black scale	California alder
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Arthropoda (Arthropods)	Magnoliophyta (Flowering Plants)
Class	Insecta (Insects)	Magnoliopsida (Dicots)
Order	Hemiptera (Hemiptera)	Fagales (Beeches & Oaks)
Family	Coccidae	Betulaceae
Genus	Saissetia	Alnus
Species	Saissetia oleae	Alnus rhombifolia

Conservation Status

Black scale

NE — Not Evaluated

California alder

LC — Least Concern

Physical Characteristics

Attribute	Black scale	California alder
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black scale

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Widely distributed across Asia (Cyprus, Israel, Taiwan), Europe (22 countries), North America (Dominica, United States), and South America (Chile).

California alder

Habitat

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

Range

Found in Canada.

Black scale

The Black scale (Saissetia oleae) is a species in the genus Saissetia. Typically found in virtually all terrestrial and freshwater habitats.

California alder

The California alder (Alnus rhombifolia) is a species in the genus Alnus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.