Brindled Flat-body vs Common Nut Truffle

Agonopterix arenella compared with Hymenogaster vulgaris

Key Differences

• Brindled Flat-body is Least Concern while Common Nut Truffle is Data Deficient.

Taxonomic Classification

Rank	Brindled Flat-body	Common Nut Truffle
Kingdom	Animalia (동물)	Fungi (균계)
Phylum	Arthropoda (절지동물)	Basidiomycota (담자균류)
Class	Insecta (곤충)	Agaricomycetes (주름버섯강)
Order	Lepidoptera (나비목)	Agaricales (주름버섯목)
Family	Depressariidae	Hymenogastraceae
Genus	Agonopterix	Hymenogaster
Species	Agonopterix arenella	Hymenogaster vulgaris

Conservation Status

Brindled Flat-body

LC — Least Concern

Common Nut Truffle

DD — Data Deficient

Physical Characteristics

Attribute	Brindled Flat-body	Common Nut Truffle
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.

Common Nut Truffle

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Distributed across Denmark, Norway, Portugal, Sweden, and United States.

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.

Common Nut Truffle

<em>Hymenogaster vulgaris</em>, the common nut truffle, is a hypogeous (below-ground) fungus in the family Hymenogastraceae, order Agaricales. This sequestrate species produces enclosed, truffle-like fruiting bodies that mature underground and rely primarily on small mammals and invertebrates for spore dispersal, as the sporocarps never open to release spores aerially. <em>Hymenogaster vulgaris</em> typically forms ectomycorrhizal associations with hardwood tree species, particularly oaks and beeches, in temperate European forests. Its geographic range includes Denmark, Norway, Portugal, Sweden, and the United States, reflecting a somewhat scattered distribution across temperate zones. The species is currently assessed as Data Deficient by the IUCN, indicating that insufficient information exists to evaluate its conservation status, likely because hypogeous fungi are difficult to survey and their population trends are poorly known. Biological traits such as lifespan, body size, and diet remain poorly documented for this species. As an ectomycorrhizal fungus, <em>Hymenogaster vulgaris</em> plays a critical role in facilitating nutrient uptake in host trees and supporting forest health across its temperate range.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden