Five-striped Spider
VU

Five-striped Spider

Thanatus striatus

Unknown

Photo: iNaturalist: (c) quinnm, some rights reserved (CC BY)

Overview

Thanatus striatus is a species of running crab spider in the family Philodromidae. It is found in North America, Europe, Turkey, a range from Russia, and Central Asia.

The duinrenspin faces significant threats from habitat loss due to coastal development and dune stabilization projects that alter its specialized sandy habitat. Climate change and increased storm intensity threaten the fragile dune ecosystems this species depends on, while recreational activities and tourism development further fragment and degrade suitable habitat.

Threat summary

Habitat

Inhabits coastal sand dunes, sandy heathlands, and dry grasslands near shorelines, particularly favoring sparsely vegetated areas with loose sand and low shrub cover. The species is specifically adapted to dynamic dune systems and sandy soils in coastal environments.

TERRESTRIAL· major

Other threatened species in Philodromidae

Lichen Running-spiderCR

Lichen Running-spider

Philodromus margaritatus

Unknown
Grooved Running Crab SpiderVU

Grooved Running Crab Spider

Tibellus maritimus

Unknown

Threatened in Åland Islands

Scarce BlackneckCR

Scarce Blackneck

Lygephila craccae

Unknown
EN

Dolichopus notatus

Unknown
Haplodrassus cognatusCR

Haplodrassus cognatus

Unknown
Yellow-breasted BuntingCR

Yellow-breasted Bunting

Emberiza aureola

Declining

Frequently asked questions

Why is Five-striped Spider classified as Vulnerable?
Five-striped Spider is classified as Vulnerable because the population is declining and the species faces a high risk of extinction in the medium-term future if current pressures continue. The duinrenspin faces significant threats from habitat loss due to coastal development and dune stabilization projects that alter its specialized sandy habitat. Climate change and increased storm intensity threaten the fragile dune ecosystems this species depends on, while recreational activities and tourism development further fragment and degrade suitable habitat.
Where does Five-striped Spider live?
Five-striped Spider occurs in Åland Islands, Austria, Belarus, Belgium, Canada, and Czechia (plus 21 other countries). Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Five-striped Spider?
The main threats to Five-striped Spider are ai-1, ai-2, ai-3, and ai-4. The full IUCN-classified threat record for this species is detailed on the species page.

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