Theridion albidorsum

Theridion albidorsum
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Order: Araneae
Infraorder: Araneomorphae
Family: Theridiidae
Genus: Theridion
Species:
T. albidorsum
Binomial name
Theridion albidorsum
Strand, 1909[1]

Theridion albidorsum is a species of spider in the family Theridiidae. It is endemic to South Africa.[1]

Distribution

Theridion albidorsum is found only in South Africa.[1] It is known from the Western Cape at Retreat Flats.[2]

Habitat and ecology

This species constructs three-dimensional webs in dark places. It has been sampled from the Fynbos biome at 37 m altitude.[2]

Description

Theridion albidorsum is known only from a juvenile specimen with a total length of 1.5 mm. The carapace is blackish brown with a central yellowish brown band. The abdomen is greyish brown.[2]

Conservation

Theridion albidorsum is listed as Data Deficient for taxonomic reasons by the South African National Biodiversity Institute. The species is known only from the type locality with a very small range. The status of the species remains obscure. More sampling is needed to collect the female and male and to determine the species range.[2]

Taxonomy

Theridion albidorsum was described by Embrik Strand in 1909 from Retreat Flats in the Western Cape. The species has not been revised and remains known only from juvenile specimens.[2]

References

  1. ^ a b c d "Theridion albidorsum Strand, 1909". World Spider Catalog. Natural History Museum Bern. doi:10.24436/2. Retrieved 2025-10-01.
  2. ^ a b c d e Dippenaar-Schoeman, A.S.; Haddad, C.R.; Foord, S.H.; Lotz, L.N. (2021). The Theridiidae of South Africa. Part 2 [R-T]. Version 1. South African National Survey of Arachnida Photo Identification Guide. p. 25. doi:10.5281/zenodo.7515998. This article incorporates text available under the CC BY 4.0 license.