Bitter Beech Bolete vs Lesser Noctule

Caloboletus calopus compared with Nyctalus leisleri

Key Differences

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

Taxonomic Classification

Rank	Bitter Beech 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	Caloboletus	Nyctalus
Species	Caloboletus calopus	Nyctalus leisleri

Conservation Status

Bitter Beech Bolete

LC — Least Concern

Lesser Noctule

EN — Endangered

Physical Characteristics

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

Habitat & Geographic Range

Bitter Beech Bolete

Habitat

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

Range

Distributed across 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 Beech Bolete

The Bitter Beech Bolete (Caloboletus calopus) is a species in the genus Caloboletus. 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 2 countries:

🇩🇰 Denmark 🇸🇪 Sweden