Blackthorn Argent vs Common Fieldcap

Argyresthia spinosella compared with Agrocybe pediades

Key Differences

Blackthorn Argent is Endangered while Common Fieldcap is Least Concern.

Taxonomic Classification

Rank	Blackthorn Argent	Common Fieldcap
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Arthropoda (Arthropods)	Basidiomycota (Club Fungi)
Class	Insecta (Insects)	Agaricomycetes (Mushrooms)
Order	Lepidoptera (Butterflies & Moths)	Agaricales (Gilled Mushrooms)
Family	Argyresthiidae	Strophariaceae
Genus	Argyresthia	Agrocybe
Species	Argyresthia spinosella	Agrocybe pediades

Conservation Status

Blackthorn Argent

EN — Endangered

Common Fieldcap

LC — Least Concern

Physical Characteristics

Attribute	Blackthorn Argent	Common Fieldcap
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blackthorn Argent

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Common Fieldcap

Habitat

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

Range

Found across Europe (5 countries) and North America (United States).

Blackthorn Argent

The Blackthorn Argent (Argyresthia spinosella) is a species in the genus Argyresthia. It is currently classified as Endangered on the IUCN Red List. Distributed across Belgium, Denmark, Norway, and Sweden. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Common Fieldcap

The Common Fieldcap (<em>Agrocybe pediades</em>) is a saprotrophic fungus belonging to the genus Agrocybe within the family Strophariaceae. It typically produces small, tan to pale brown cap-shaped fruiting bodies and is often found growing in clusters or scattered on lawns, grassy areas, forest floors, decomposing wood, and soil-rich ecosystems. The species typically inhabits forest floors, decomposing wood, and soil ecosystems, obtaining nutrients by breaking down dead organic matter. Its geographic range includes several European countries — Belgium, Denmark, Norway, Portugal, and Sweden — as well as the United States in North America. <em>Agrocybe pediades</em> is assessed as Least Concern on the IUCN Red List, reflecting its broad distribution and apparent stability. Biological traits of this species, including specific data on fruiting body size, lifespan, and ecological preferences, remain poorly documented in the scientific literature. Like other members of its genus, it typically fruits during warmer months and often appears after rainfall in nutrient-rich grassland and woodland habitats.