Brown Willow Beetle vs koala

Galerucella lineola compared with Phascolarctos cinereus

Key Differences

• Brown Willow Beetle is Least Concern while koala is Vulnerable.

Taxonomic Classification

Rank	Brown Willow Beetle	koala
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Coleoptera (Beetles)	Diprotodontia (Marsupials)
Family	Chrysomelidae	Phascolarctidae (Koalas)
Genus	Galerucella	Phascolarctos (Koalas)
Species	Galerucella lineola	Phascolarctos cinereus

Evolutionary Relationship

Brown Willow Beetle and koala share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Brown Willow Beetle

LC — Least Concern

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Brown Willow Beetle	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

Brown Willow Beetle

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

koala

Habitat

Typically found in grasslands, forests, and vegetated habitats.

Range

Found in Australia. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Brown Willow Beetle

The Brown Willow Beetle (Galerucella lineola) is a species in the genus Galerucella. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

koala

Iconic marsupial of eastern and southeastern Australia, koalas weigh up to 15 kg and spend up to 22 hours daily sleeping to conserve energy from their low-calorie eucalyptus leaf diet. Highly specialized to process toxic eucalyptus compounds that would kill most other mammals, they have gut microbiomes uniquely adapted for detoxification. Listed as Endangered in 2022, with populations decimated by chlamydia disease, habitat clearing, and climate change.