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Black-Legged Niche Weaver

Black-Legged Niche Weaver

Walckenaeria atrotibialis

A small, cryptic linyphiid spider species endemic to Europe, characterized by distinctive dark tibial coloration and intricate web-building behaviors in microhabitats.

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Black-Legged Niche Weaver
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Ecology & Habitat

Habitat

Primarily found in temperate forest floors, grassland understories, leaf litter, moss patches, and low vegetation layers with high humidity and moderate temperatures between 5-20°C

Ecological Role

Plays a crucial role in controlling micro-invertebrate populations, serving as both predator and potential prey in complex terrestrial food webs

Morphology

  • SKIN COAT Translucent exoskeleton with muted brown to grey coloration, providing excellent camouflage in leaf litter and ground vegetation
  • LIMBS WINGS Eight thin, darkly pigmented legs with distinctive black tibial segments, specialized for navigating complex substrate environments
  • HEAD SENSORY Eight simple eyes arranged in compact cluster, enhanced chemosensory capabilities for detecting prey and environmental cues
  • BODY STRUCTURE Small-sized spider, typically 2-3 mm in total length, with elongated cephalothorax and slender abdomen
Data Source: TaxonHub Database
Image Credit: Ssiltane
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Related Species in Linyphiidae