Bigeye thresher vs Black Deerfly

Alopias pelagicus compared with Chrysops sepulcralis

Key Differences

• Bigeye thresher is Endangered while Black Deerfly is Least Concern.

Taxonomic Classification

Rank	Bigeye thresher	Black Deerfly
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Chondrichthyes (Cartilaginous Fish)	Insecta (Insects)
Order	Lamniformes (Mackerel Sharks)	Diptera (Diptera)
Family	Alopiidae	Tabanidae
Genus	Alopias	Chrysops
Species	Alopias pelagicus	Chrysops sepulcralis

Evolutionary Relationship

Bigeye thresher and Black Deerfly share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Bigeye thresher

EN — Endangered

Black Deerfly

LC — Least Concern

Physical Characteristics

Attribute	Bigeye thresher	Black Deerfly
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.

Black Deerfly

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

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.

Black Deerfly

The Black Deerfly (Chrysops sepulcralis) is a species in the genus Chrysops. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats. Distributed across Belgium, Denmark, Norway, and Sweden.