Agroeca dentigera
Local name: kärrmånspindel
Agroeca dentigera is a small ground-dwelling spider species with a brownish coloration and distinctive dental-like projections on its chelicerae that give it its scientific name. This nocturnal hunter plays an important ecological role as both predator of small invertebrates and prey for larger arthropods and small vertebrates in its ecosystem.
10
Countries
Taxonomy & Classification
Kingdom
Animalia
Phylum
Arthropoda
Class
Arachnida
Order
Araneae
Family
Liocranidae
Genus
Agroeca
Agroeca dentigera belongs to the family Liocranidae, order Araneae, within the Arachnida class.
Species Profile
Agroeca dentigera is a small ground-dwelling spider species with a brownish coloration and distinctive dental-like projections on its chelicerae that give it its scientific name. This nocturnal hunter plays an important ecological role as both predator of small invertebrates and prey for larger arthropods and small vertebrates in its ecosystem.
Agroeca dentigera faces severe population declines primarily due to habitat loss and degradation of its specialized wetland environments. The species is particularly vulnerable to drainage of marshlands, agricultural intensification, and changes in water management practices that alter the moisture regimes of its preferred habitats.
Key Facts
Habitat & Distribution
This spider inhabits the margins of marshes, bogs, and wet meadows, particularly favoring areas with dense sedge tussocks and moss layers that provide both hunting grounds and shelter. It requires consistently moist soil conditions and is typically found in areas subject to seasonal flooding or permanent high water tables.
Threats
IUCN Red List: Endangered
Agroeca dentigera faces severe population declines primarily due to habitat loss and degradation of its specialized wetland environments. The species is particularly vulnerable to drainage of marshlands, agricultural intensification, and changes in water management practices that alter the moisture regimes of its preferred habitats.
Agricultural intensification and land use change
Wetland drainage and habitat loss
Climate change affecting moisture regimes
Water management and hydrological changes
Found in 10 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). Agroeca dentigera (Agroeca dentigera). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/karrmanspindel