Boring Sponge vs Coastal Flat-body

Cliona celata compared with Agonopterix yeatiana

Key Differences

• Boring Sponge is Not Evaluated while Coastal Flat-body is Near Threatened.

Taxonomic Classification

Rank	Boring Sponge	Coastal Flat-body
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Porifera (Sponges)	Arthropoda (Arthropods)
Class	Demospongiae (Demospongiae)	Insecta (Insects)
Order	Clionaida (Clionaida)	Lepidoptera (Butterflies & Moths)
Family	Clionaidae	Depressariidae
Genus	Cliona	Agonopterix
Species	Cliona celata	Agonopterix yeatiana

Evolutionary Relationship

Boring Sponge and Coastal Flat-body share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Boring Sponge

NE — Not Evaluated

Coastal Flat-body

NT — Near Threatened

Physical Characteristics

Attribute	Boring Sponge	Coastal Flat-body
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Boring Sponge

Habitat

Native to Europe and South America, inhabiting ecosystems characteristic of the region.

Range

Found across Europe (5 countries) and South America (Argentina).

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.

Boring Sponge

The Boring Sponge (Cliona celata) is a species in the genus Cliona. Native to Europe and South America, inhabiting ecosystems characteristic of the region.

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.

Shared Countries

Both species can be found in 3 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇸🇪 Sweden