Bigeye thresher vs blackheaded fireworm, Holly Tortrix

Alopias pelagicus compared with Rhopobota naevana

Key Differences

• Bigeye thresher is Endangered while blackheaded fireworm, Holly Tortrix is Least Concern.

Taxonomic Classification

Rank	Bigeye thresher	blackheaded fireworm, Holly Tortrix
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Chondrichthyes (Cartilaginous Fish)	Insecta (Insects)
Order	Lamniformes (Mackerel Sharks)	Lepidoptera (Butterflies & Moths)
Family	Alopiidae	Tortricidae
Genus	Alopias	Rhopobota
Species	Alopias pelagicus	Rhopobota naevana

Evolutionary Relationship

Bigeye thresher and blackheaded fireworm, Holly Tortrix share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Bigeye thresher

EN — Endangered

blackheaded fireworm, Holly Tortrix

LC — Least Concern

Physical Characteristics

Attribute	Bigeye thresher	blackheaded fireworm, Holly Tortrix
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bigeye thresher

Habitat

Typically found in marine environments from coastal waters to deep ocean.

Range

Distributed across Colombia and Taiwan. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its 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).

Bigeye thresher

The Bigeye thresher (Alopias pelagicus) is a species in the genus Alopias. It is currently classified as Endangered on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.

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.

Shared Countries

Both species can be found in 1 countries:

🇹🇼 Taiwan