Singa nitidula
Local name: älvglansspindel
Singa nitidula, known as the älvglansspindel or shiny stream spider, is a small orb weaver spider with a distinctive glossy, dark carapace and pale markings on its abdomen. This semi-aquatic arachnid constructs delicate webs near water sources to capture flying insects, playing a crucial role in controlling populations of midges, mosquitoes, and other aquatic-emerging diptera.
31
Countries
Photo: iNaturalist: (c) Rudi Ritt, all rights reserved, uploaded by Rudi Ritt
Taxonomy & Classification
Kingdom
Animalia
Phylum
Arthropoda
Class
Arachnida
Order
Araneae
Family
Araneidae
Genus
Singa
Singa nitidula belongs to the family Araneidae, order Araneae, within the Arachnida class.
Species Profile
Singa nitidula, known as the älvglansspindel or shiny stream spider, is a small orb weaver spider with a distinctive glossy, dark carapace and pale markings on its abdomen. This semi-aquatic arachnid constructs delicate webs near water sources to capture flying insects, playing a crucial role in controlling populations of midges, mosquitoes, and other aquatic-emerging diptera.
Singa nitidula faces severe population declines primarily due to habitat loss and degradation of its specialized wetland environments. The species is particularly vulnerable to water pollution, drainage of wetlands, and changes in water quality that affect its prey base and web-building sites.
Key Facts
Habitat & Distribution
This species inhabits the vegetation immediately adjacent to clean, slow-moving streams and rivers, particularly favoring areas with overhanging grasses and sedges. It requires pristine riparian zones with stable water levels and minimal human disturbance.
Threats
IUCN Red List: Endangered
Singa nitidula faces severe population declines primarily due to habitat loss and degradation of its specialized wetland environments. The species is particularly vulnerable to water pollution, drainage of wetlands, and changes in water quality that affect its prey base and web-building sites.
Water pollution and eutrophication
Wetland habitat destruction and drainage
Climate change affecting water levels
Loss of riparian vegetation
Found in 31 Countries
Community Sightings
Report a sightingNo community sightings yet. Be the first to report!
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). Singa nitidula (Singa nitidula). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/alvglansspindel