Bigeye thresher vs Coastal Flat-body

Alopias pelagicus compared with Agonopterix yeatiana

Key Differences

• Bigeye thresher is Endangered while Coastal Flat-body is Near Threatened.

Taxonomic Classification

Rank	Bigeye thresher	Coastal Flat-body
Kingdom same	Animalia (प्राणी)	Animalia (प्राणी)
Phylum	Chordata (रज्जुकी)	Arthropoda (सन्धिपाद)
Class	Chondrichthyes (कॉन्ड्रीइक्थीज़)	Insecta (कीट)
Order	Lamniformes (Mackerel Sharks)	Lepidoptera (शल्कपंखी गण)
Family	Alopiidae	Depressariidae
Genus	Alopias	Agonopterix
Species	Alopias pelagicus	Agonopterix yeatiana

Evolutionary Relationship

Bigeye thresher and Coastal Flat-body share a common ancestor at the Kingdom level: Animalia. (प्राणी)

Conservation Status

Bigeye thresher

EN — Endangered

Coastal Flat-body

NT — Near Threatened

Physical Characteristics

Attribute	Bigeye thresher	Coastal Flat-body
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.

Coastal Flat-body

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

Coastal Flat-body

Agonopterix yeatiana, the coastal flat-body, is a small moth in the family Depressariidae native to coastal and calcareous grassland habitats across western and northern Europe, with records from Belgium, Denmark, and Sweden. Moths in the family Depressariidae, commonly called flat-body moths due to the depressed posture they adopt when resting with wings held flat against the surface, are associated predominantly with umbellifer plants of the family Apiaceae as larval hosts. Agonopterix yeatiana larvae feed on wild carrot (Daucus carota), wild parsnip (Pastinaca sativa), and related coastal and grassland Apiaceae species, inhabiting the open, often calcareous or sandy habitats where these plants grow. Adult moths have greyish-brown forewing with a distinctive pattern of spots and dashes and reach approximately 8–12 millimeters in wingspan. The species is classified as Near Threatened by the IUCN, reflecting declines associated with the loss of traditional hay meadow management, coastal grassland degradation, and scrub encroachment that eliminates the open, flower-rich grassland habitats supporting its host plants. Agricultural intensification has reduced wild umbellifer populations significantly across lowland Europe, reducing food resources for larvae of specialist moths like A. yeatiana.