Bitter Knight vs Broad-Bordered White Underwing

Tricholoma acerbum compared with Anarta melanopa

Key Differences

• Bitter Knight is Endangered while Broad-Bordered White Underwing is Least Concern.

Taxonomic Classification

Rank	Bitter Knight	Broad-Bordered White Underwing
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Basidiomycota (Club Fungi)	Arthropoda (artrópode)
Class	Agaricomycetes (Mushrooms)	Insecta (inseto)
Order	Agaricales (Gilled Mushrooms)	Lepidoptera (Butterflies & Moths)
Family	Tricholomataceae	Noctuidae
Genus	Tricholoma	Anarta
Species	Tricholoma acerbum	Anarta melanopa

Conservation Status

Bitter Knight

EN — Endangered

Broad-Bordered White Underwing

LC — Least Concern

Physical Characteristics

Attribute	Bitter Knight	Broad-Bordered White Underwing
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bitter Knight

Habitat

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

Range

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

Broad-Bordered White Underwing

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Norway and Sweden.

Bitter Knight

The Bitter Knight (Tricholoma acerbum) is a species in the genus Tricholoma. It is currently classified as Endangered on the IUCN Red List. Typically found in forest floors, decomposing wood, and soil ecosystems.

Broad-Bordered White Underwing

The Broad-Bordered White Underwing (Anarta melanopa) is a species in the genus Anarta. 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 2 countries:

🇳🇴 Norway 🇸🇪 Sweden