blackheaded fireworm, Holly Tortrix vs Blauwal

Rhopobota naevana compared with Balaenoptera musculus

Key Differences

• blackheaded fireworm, Holly Tortrix is Least Concern while Blauwal is Vulnerable.

Taxonomic Classification

Rank	blackheaded fireworm, Holly Tortrix	Blauwal
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum	Arthropoda (Gliederfüßer)	Chordata (Chordatiere)
Class	Insecta (Insekten)	Mammalia (Säugetiere)
Order	Lepidoptera (Schmetterlinge)	Cetacea (Whales & Dolphins)
Family	Tortricidae	Balaenopteridae (Rorquals)
Genus	Rhopobota	Balaenoptera (Rorquals)
Species	Rhopobota naevana	Balaenoptera musculus

Evolutionary Relationship

blackheaded fireworm, Holly Tortrix and Blauwal share a common ancestor at the Kingdom level: Animalia. (Tier)

Conservation Status

blackheaded fireworm, Holly Tortrix

LC — Least Concern

Blauwal

VU — Vulnerable

Population: ~15.0K

Trend: Increasing ↑

Physical Characteristics

Attribute	blackheaded fireworm, Holly Tortrix	Blauwal
Diet	—	Carnivore
Average Lifespan	—	90 years
Average Length	—	30.0 m
Average Weight	—	150.0 t

Habitat & Geographic Range

blackheaded fireworm, Holly Tortrix

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Widely distributed across Asia (Taiwan), Europe (6 countries), and North America (Canada, United States).

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.

blackheaded fireworm, Holly Tortrix

The blackheaded fireworm, Holly Tortrix (Rhopobota naevana) is a species in the genus Rhopobota. 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 5 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden 🇹🇼 Taiwan