Clustered Domecap vs Common Flat-body

Lyophyllum decastes compared with Agonopterix heracliana

Taxonomic Classification

Rank	Clustered Domecap	Common Flat-body
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Basidiomycota (Club Fungi)	Arthropoda (Arthropods)
Class	Agaricomycetes (Mushrooms)	Insecta (Insects)
Order	Agaricales (Gilled Mushrooms)	Lepidoptera (Butterflies & Moths)
Family	Lyophyllaceae	Depressariidae
Genus	Lyophyllum	Agonopterix
Species	Lyophyllum decastes	Agonopterix heracliana

Conservation Status

Clustered Domecap

LC — Least Concern

Common Flat-body

LC — Least Concern

Physical Characteristics

Attribute	Clustered Domecap	Common Flat-body
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Clustered Domecap

Habitat

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

Range

Widely distributed across Europe (5 countries), North America (United States), and South America (Brazil, Chile).

Common Flat-body

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Clustered Domecap

Lyophyllum decastes, the clustered domecap or fried chicken mushroom, is a robust saprotrophic or possibly mycorrhizal basidiomycete in the family Lyophyllaceae that produces large, densely clustered fruiting bodies at the base of dead hardwoods, stumps, or from buried wood and woody debris. The caps are grey-brown to tan, broadly convex to domed, often with wavy margins in crowded clusters. Gills are white to pallid, crowded, and sinuate. It is distributed across the northern hemisphere in broadleaf and mixed forests. L. decastes is edible and considered a choice food mushroom in parts of Europe and Japan, where its firm texture and mild flavor have earned it the English nickname 'fried chicken mushroom.' However, definitive identification requires care, as it can be confused with toxic lookalikes. Molecular studies have revealed that the concept of L. decastes may encompass multiple species or a species complex. The species is classified as Least Concern by the IUCN and is commonly encountered in autumn in temperate woodlands, parks, and roadsides across its wide range.

Common Flat-body

<em>Agonopterix heracliana</em> is a moth belonging to the family Depressariidae within the order Lepidoptera. Commonly known as the common flat-body, this species is named for the flattened resting posture characteristic of the genus Agonopterix. The species is classified as Least Concern on the IUCN Red List, with no indication of significant population decline. <em>Agonopterix heracliana</em> is distributed across northwestern Europe, with documented occurrences in Belgium, Denmark, Norway, and Sweden. Larvae of this species are typically associated with plants in the family Apiaceae, particularly hogweed (Heracleum sphondylium) and related umbellifers, upon which they feed while sheltering in rolled or folded leaves. Adults are typically brownish with subtle markings and are active from late summer through winter and early spring, overwintering as adults — an unusual life history trait among moths. The species inhabits hedgerows, woodland margins, and meadows where its host plants are abundant. Biological traits of this species remain poorly documented in the scientific literature.