Lichen Running-spider
Philodromus margaritatus
Philodromus margaritatus is a species of philodromid crab spiders. It is found in Europe, Turkey, Caucasus, Russia to Kazakhstan, Korea and Japan.
Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Philodromus_margaritatus
Taxonomy & Classification
Kingdom
Animalia
Phylum
Arthropoda
Class
Arachnida
Order
Araneae
Family
Philodromidae
Genus
Philodromus
Lichen Running-spider belongs to the family Philodromidae, order Araneae, within the Arachnida class.
Species Profile
Philodromus margaritatus is a species of philodromid crab spiders. It is found in Europe, Turkey, Caucasus, Russia to Kazakhstan, Korea and Japan.
The Lichen Running-spider faces severe threats primarily from habitat loss and degradation of its specialized lichen-rich environments. Climate change and air pollution are particularly damaging as they directly impact the lichen communities this species depends on for both shelter and hunting grounds. The species' extremely limited distribution and specialized ecological requirements make it highly vulnerable to environmental changes.
Key Facts
Threats
IUCN Red List: Critically Endangered
The Lichen Running-spider faces severe threats primarily from habitat loss and degradation of its specialized lichen-rich environments. Climate change and air pollution are particularly damaging as they directly impact the lichen communities this species depends on for both shelter and hunting grounds. The species' extremely limited distribution and specialized ecological requirements make it highly vulnerable to environmental changes.
Air pollution affecting lichen communities
Climate change impacts on microhabitat conditions
Habitat loss and fragmentation
Small population size and limited distribution
Loss of old-growth trees supporting lichen growth
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). Lichen Running-spider (Philodromus margaritatus). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/lichen-running-spider