Brindled Flat-body vs fern-grass

Agonopterix arenella compared with Catapodium rigidum

Key Differences

• Brindled Flat-body is Least Concern while fern-grass is Endangered.

Taxonomic Classification

Rank	Brindled Flat-body	fern-grass
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Arthropoda (Arthropods)	Magnoliophyta (Flowering Plants)
Class	Insecta (Insects)	Liliopsida (Monocots)
Order	Lepidoptera (Butterflies & Moths)	Poales (Grasses)
Family	Depressariidae	Poaceae (Grass Family)
Genus	Agonopterix	Catapodium
Species	Agonopterix arenella	Catapodium rigidum

Conservation Status

Brindled Flat-body

LC — Least Concern

fern-grass

EN — Endangered

Physical Characteristics

Attribute	Brindled Flat-body	fern-grass
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brindled Flat-body

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

fern-grass

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, montane grasslands and shrublands, and Mediterranean forests and woodlands, among 9 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (South Africa), Asia (Japan), Europe (10 countries), North America (Mexico), Oceania and the Pacific (Australia), and South America (Argentina, Brazil, Chile). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Brindled Flat-body

The Brindled Flat-body (Agonopterix arenella) is a species in the genus Agonopterix. 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 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden