EN

mossluiper

Apostenus fuscus

Unknown

Overview

A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.

The mossluiper faces severe habitat degradation from agricultural expansion and urban development across its limited range in South Africa's Western Cape. Invasive plant species, particularly Australian acacias and pines, are displacing the native fynbos vegetation that this specialized spider depends on for hunting and shelter. Climate change is altering the moisture regimes of its moss-rich microhabitats, while frequent fires outside natural cycles further fragment suitable habitat patches.

Threat summary

Habitat

The mossluiper inhabits moss-covered rocks and soil surfaces within South Africa's fynbos shrublands, particularly in areas with consistent moisture and dense bryophyte communities. This specialized hunter requires the complex microhabitat structure provided by healthy moss beds, which offer both prey opportunities and protection from desiccation.

Other threatened species in Liocranidae

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langpootbodemzakspin

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duinlantaarnspinVU

duinlantaarnspin

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EN

Golden Lantern-spider

Agroeca cuprea

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Threatened in Austria

Calidris ferrugineaVU

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Anthophore estivaleCR

Anthophore estivale

Anthophora aestivalis

Unknown
Adonis BlueVU

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Lysandra bellargus

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agnhodeedderkoppCR

agnhodeedderkopp

Walckenaeria alticeps

Unknown

Frequently asked questions

Why is mossluiper classified as Endangered?
mossluiper is classified as Endangered — facing a very high risk of extinction in the wild — because population numbers are declining steeply and key habitats are under sustained pressure. The mossluiper faces severe habitat degradation from agricultural expansion and urban development across its limited range in South Africa's Western Cape. Invasive plant species, particularly Australian acacias and pines, are displacing the native fynbos vegetation that this specialized spider depends on for hunting and shelter. Climate change is altering the moisture regimes of its moss-rich microhabitats, while frequent fires outside natural cycles further fragment suitable habitat patches.
Where does mossluiper live?
mossluiper occurs in Austria, Belgium, Croatia, Czechia, Denmark, and Finland (plus 17 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 mossluiper?
The main threats to mossluiper 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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