Big-Bellied Webcap vs Cluster Bat

Cortinarius largus compared with Myotis sodalis

Key Differences

• Big-Bellied Webcap is Least Concern while Cluster Bat is Near Threatened.

Taxonomic Classification

Rank	Big-Bellied Webcap	Cluster Bat
Kingdom	Fungi (균계)	Animalia (동물)
Phylum	Basidiomycota (담자균류)	Chordata (척삭동물)
Class	Agaricomycetes (주름버섯강)	Mammalia (포유류)
Order	Agaricales (주름버섯목)	Chiroptera (박쥐)
Family	Cortinariaceae	Vespertilionidae
Genus	Cortinarius	Myotis
Species	Cortinarius largus	Myotis sodalis

Conservation Status

Big-Bellied Webcap

LC — Least Concern

Cluster Bat

NT — Near Threatened

Physical Characteristics

Attribute	Big-Bellied Webcap	Cluster Bat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Big-Bellied Webcap

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Cluster Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in United States. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Big-Bellied Webcap

The Big-Bellied Webcap (Cortinarius largus) is a species in the genus Cortinarius. It is currently classified as Least Concern on the IUCN Red List. Typically found in forest floors, decomposing wood, and soil ecosystems.

Cluster Bat

Myotis sodalis, the Indiana bat or cluster bat, is a medium-sized insectivorous bat in the family Vespertilionidae endemic to the eastern United States. It is one of the most endangered bats in North America, listed as Endangered under the U.S. Endangered Species Act and classified as Near Threatened by the IUCN. The species is named for its behavior of clustering in extremely dense hibernation groups—sometimes thousands of bats per square meter—in specific limestone caves and mines during winter. These few critical hibernacula make the species extremely vulnerable to disturbance and disease. Since 2007, Indiana bats have suffered severe mortality from white-nose syndrome, a fungal disease caused by Pseudogymnoascus destructans that disrupts hibernation and causes mass starvation. During summer, Indiana bats roost under loose bark of dead trees and forage for insects over forested landscapes and riparian areas. Foraging individuals consume moths, beetles, and flying insects. Conservation efforts include cave gate protection, white-nose syndrome research, and summer habitat management on public and private lands across the eastern US.