Black Marram Weevil vs Blauwal

Otiorhynchus atroapterus compared with Balaenoptera musculus

Key Differences

• Black Marram Weevil is Least Concern while Blauwal is Vulnerable.

Taxonomic Classification

Rank	Black Marram Weevil	Blauwal
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum	Arthropoda (Gliederfüßer)	Chordata (Chordatiere)
Class	Insecta (Insekten)	Mammalia (Säugetiere)
Order	Coleoptera (Käfer)	Cetacea (Whales & Dolphins)
Family	Curculionidae	Balaenopteridae (Rorquals)
Genus	Otiorhynchus	Balaenoptera (Rorquals)
Species	Otiorhynchus atroapterus	Balaenoptera musculus

Evolutionary Relationship

Black Marram Weevil and Blauwal share a common ancestor at the Kingdom level: Animalia. (Tier)

Conservation Status

Black Marram Weevil

LC — Least Concern

Blauwal

VU — Vulnerable

Population: ~15.0K

Trend: Increasing ↑

Physical Characteristics

Attribute	Black Marram Weevil	Blauwal
Diet	—	Carnivore
Average Lifespan	—	90 years
Average Length	—	30.0 m
Average Weight	—	150.0 t

Habitat & Geographic Range

Black Marram Weevil

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (12 countries).

Blauwal

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 11 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and South America (Colombia, Ecuador). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Black Marram Weevil

The Black Marram Weevil (Otiorhynchus atroapterus) is a species in the genus Otiorhynchus. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

Blauwal

The largest animal ever known to have lived on Earth, blue whales can reach 33 meters and 200 tonnes — their hearts alone weigh as much as a small car. Found in all oceans, they migrate between polar feeding grounds and tropical breeding areas. Filter feeders consuming up to 4 tonnes of krill daily. Endangered, with global populations estimated at 10,000–25,000 after near-extinction from 20th-century whaling.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden