Arachnid · GBIF taxon 2133453
Mouse Spider
Scotophaeus blackwalliAlso known as European Mouse Spider, Blackwall's Mouse Spider
Mouse spiders prowl dark corners, sheds, and stone walls at night, using swift bursts of speed to capture prey without relying on a capture web. Their velvety grey-to-brown abdomen resembles the sleek fur of a small rodent, giving them their memorable common name. By day, they rest inside silky tube-like retreats tucked beneath loose tree bark, leaf litter, or indoor floorboards.
NocturnalGround HunterVelvety
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Least ConcernConservation statusIUCN Red List categoriesLCNTVUENCREWEXLeast ConcernRed List categories, explained →
Diet & prey
- Flies
- Silverfish
- Woodlice
Predators
- Birds
- Centipedes
- Larger spiders
ThreatsPesticides and intentional human eradication
HabitatsHomes, sheds, stone walls, and under loose bark
Life span1–3 years
Size / weightNot available
Classification
- OrderAraneae
- FamilyGnaphosidae
- GenusScotophaeus
- SpeciesScotophaeus blackwalli
Range data is not available yet.
Interaction riskLow
- Low
- Moderate
- High
- Very high
- Why interaction risk is low
- Safe to observe at a normal distance.
Responsible observation
- Nighttime observation: Look along indoor baseboards or exterior walls after dark with a flashlight.
- Safe removal: Gently trap under a glass and slide paper underneath to relocate outdoors.
- Indoor coexistence: Leave them undisturbed in quiet corners where they provide free pest control.
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