Australian spider beetle vs koala

Ptinus tectus compared with Phascolarctos cinereus

Key Differences

• Australian spider beetle is Least Concern while koala is Vulnerable.

Taxonomic Classification

Rank	Australian spider beetle	koala
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum	Arthropoda (arthropodes)	Chordata (Chordates)
Class	Insecta (insecte)	Mammalia (mammifères)
Order	Coleoptera (Beetles)	Diprotodontia (Marsupials)
Family	Ptinidae	Phascolarctidae (Koalas)
Genus	Ptinus	Phascolarctos (Koalas)
Species	Ptinus tectus	Phascolarctos cinereus

Evolutionary Relationship

Australian spider beetle and koala share a common ancestor at the Kingdom level: Animalia. (animal)

Conservation Status

Australian spider beetle

LC — Least Concern

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Australian spider beetle	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

Australian spider beetle

Habitat

Inhabits Mediterranean forests and woodlands within the Palearctic biogeographic realm.

Range

Widely distributed across Asia (Cyprus), Europe (33 countries), and North America (Canada, United States).

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.

Australian spider beetle

The Australian spider beetle (Ptinus tectus) is a species in the genus Ptinus. It is currently classified as Least Concern on the IUCN Red List. Inhabits Mediterranean forests and woodlands within the Palearctic biogeographic realm.

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.