Coelotes atropos
Local name: björntrattspindel
The björntrattspindel (Coelotes atropos) is a medium-sized funnel-web spider with a dark brown to blackish coloration and robust build. This species constructs distinctive funnel-shaped webs in crevices and plays an important role as a predator of small invertebrates in its ecosystem.
19
Countries
Photo: iNaturalist: (c) Emma Morley, niektoré práva vyhradené (CC BY-NC), uploaded by Emma Morley
Taxonomy & Classification
Kingdom
Animalia
Phylum
Arthropoda
Class
Arachnida
Order
Araneae
Family
Agelenidae
Genus
Coelotes
Coelotes atropos belongs to the family Agelenidae, order Araneae, within the Arachnida class.
Species Profile
The björntrattspindel (Coelotes atropos) is a medium-sized funnel-web spider with a dark brown to blackish coloration and robust build. This species constructs distinctive funnel-shaped webs in crevices and plays an important role as a predator of small invertebrates in its ecosystem.
Björntrattspindel (Coelotes atropos) faces significant threats from habitat degradation and fragmentation of its specialized cave and underground environments. Climate change poses additional risks by altering the delicate microclimate conditions essential for this species' survival, while human disturbance of cave systems further compounds population pressures.
Key Facts
Habitat & Distribution
This species inhabits caves, underground cavities, and associated subterranean environments, typically in limestone karst regions. It requires stable, humid microclimate conditions found in the deeper zones of cave systems and underground spaces.
Threats
Cave habitat degradation and disturbance
Climate change affecting cave microclimates
Habitat fragmentation
Human recreational activities in cave systems
Limited dispersal ability between isolated populations
Found in 19 Countries
Community Sightings
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Sources & Attribution
How to Cite
IUCN: IUCN (2025). The IUCN Red List of Threatened Species. Version 2025-1. Available at: https://www.iucnredlist.org. doi:10.2305/IUCN.UK.2025-1.RLTS
GBIF: GBIF.org (2025). GBIF Home Page. Available at: https://www.gbif.org
This page: SpeciesRadar (2025). Coelotes atropos (Coelotes atropos). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/bjorntrattspindel