Beet tortoise beetle vs Red-billed Duck

Cassida nebulosa compared with Anas erythrorhyncha

Key Differences

• Beet tortoise beetle is Vulnerable while Red-billed Duck is Least Concern.

Taxonomic Classification

Rank	Beet tortoise beetle	Red-billed Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Aves (Birds)
Order	Coleoptera (Beetles)	Anseriformes (Anseriformes)
Family	Chrysomelidae	Anatidae
Genus	Cassida	Anas
Species	Cassida nebulosa	Anas erythrorhyncha

Evolutionary Relationship

Beet tortoise beetle and Red-billed Duck share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Beet tortoise beetle

VU — Vulnerable

Red-billed Duck

LC — Least Concern

Physical Characteristics

Attribute	Beet tortoise beetle	Red-billed Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Beet tortoise beetle

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, Sweden, and United States. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Red-billed Duck

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found across Europe (6 countries) and South America (Ecuador).

Beet tortoise beetle

The Beet tortoise beetle (Cassida nebulosa) is a species in the genus Cassida. It is currently classified as Vulnerable on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

Red-billed Duck

Red-billed Duck (Anas erythrorhyncha) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

Shared Countries

Both species can be found in 2 countries:

🇧🇪 Belgium 🇳🇴 Norway