Bitter Bolete vs Lesser Noctule

Tylopilus felleus compared with Nyctalus leisleri

Key Differences

• Bitter Bolete is Least Concern while Lesser Noctule is Endangered.

Taxonomic Classification

Rank	Bitter Bolete	Lesser Noctule
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Basidiomycota (Club Fungi)	Chordata (Chordates)
Class	Agaricomycetes (Mushrooms)	Mammalia (Mammals)
Order	Boletales (Boletales)	Chiroptera (Bats)
Family	Boletaceae	Vespertilionidae
Genus	Tylopilus	Nyctalus
Species	Tylopilus felleus	Nyctalus leisleri

Conservation Status

Bitter Bolete

LC — Least Concern

Lesser Noctule

EN — Endangered

Physical Characteristics

Attribute	Bitter Bolete	Lesser Noctule
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bitter Bolete

Habitat

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

Range

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

Lesser Noctule

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

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

Bitter Bolete

The Bitter Bolete (Tylopilus felleus) is a species in the genus Tylopilus. It is currently classified as Least Concern on the IUCN Red List. Typically found in forest floors, decomposing wood, and soil ecosystems.

Shared Countries

Both species can be found in 3 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇸🇪 Sweden