Bend-bearing Blunt-brow Spider
Silometopus incurvatus
The Bend-bearing Blunt-brow Spider is a small, distinctive arachnid characterized by its notably blunt frontal carapace ridge and curved chelicerae that give it its common name. This cryptic species typically displays muted brown and gray coloration with subtle patterning that provides excellent camouflage among leaf litter and bark crevices.
12
Countries
Photo: iNaturalist: (c) Matt, some rights reserved (CC BY-NC), uploaded by Matt
Taxonomy & Classification
Kingdom
Animalia
Phylum
Arthropoda
Class
Arachnida
Order
Araneae
Family
Linyphiidae
Genus
Silometopus
Bend-bearing Blunt-brow Spider belongs to the family Linyphiidae, order Araneae, within the Arachnida class.
Species Profile
The Bend-bearing Blunt-brow Spider is a small, distinctive arachnid characterized by its notably blunt frontal carapace ridge and curved chelicerae that give it its common name. This cryptic species typically displays muted brown and gray coloration with subtle patterning that provides excellent camouflage among leaf litter and bark crevices. As a specialized predator, it plays an important role in controlling populations of small arthropods in its ecosystem.
The Bend-bearing Blunt-brow Spider faces significant threats from habitat degradation and fragmentation of its specialized microhabitats. Climate change and human development pressures are reducing the availability of suitable moss-rich and humid environments that this species requires for survival.
Key Facts
Habitat & Distribution
This species inhabits moss-rich environments, leaf litter, and humid microhabitats in woodlands, grasslands, and heathlands. It shows preference for areas with stable moisture conditions and dense ground vegetation cover.
Threats
Climate change affecting microhabitat conditions
Habitat fragmentation and loss
Agricultural intensification
Changes in moisture regimes
Urban development
Found in 12 Countries
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). Bend-bearing Blunt-brow Spider (Silometopus incurvatus). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/bend-bearing-blunt-brow-spider