Resources:
Linyphiidae  Blackwall, 1859 / Lessertia  Smith, 1908   2 species

Lessertia barbara (Simon, 1884)

Description
Male

Prosoma and legs yellow-brown. Prosoma length: 1.25 mm, prosoma width: 0.97 mm. Opisthosoma pale grey.

Body length male: 2.3-2.7 mm
Female

Prosoma length: 1.35 mm, prosoma width: 1.09 mm. Colouration as in males.

Body length female: 2.5-3.3 mm
Additional information

Mainly cavernicolous.

Troglophile species (Mammola et al., 2022)

Character states from linyphiid key
Distribution
  Presence
  No data
Global distribution (WSC 2026): Spain, Morocco, Algeria
Figures
Distribution List
Algeria   (Bosmans, 2007; Benhacene et al., 2023) ||| Italy / Sicily   (Isaia et al., 2025; Brignoli, 1979e) ||| Morocco   (Bosmans, 2007) ||| Spain   (Branco et al., 2019) |||
References

Benhacene R, Adjami A, Hadjeb A, Kermiche K, Ouakid M L (2023) Bibliographic checklist of the Algerian spider fauna (Araneae). Zootaxa 5352: 301-357 pdf

Bosmans R (2007) Contribution to the knowledge of the Linyphiidae of the Maghreb. Part XII. Miscellaneous erigonine genera and additional records (Araneae: Linyphiidae: Erigoninae). Bulletin & Annales de la Société Entomologique de Belgique 143: 117-163 pdf

Branco V V, Morano E, Cardoso P (2019) An update to the Iberian spider checklist (Araneae). Zootaxa 4614: 201-254 pdf

Brignoli P M (1979e) Ragni d'Italia XXXII. Specie cavernicole di Sicilia (Araneae). Animalia 5: 273-286 pdf

Denis J (1968b) Notes d'aranéologie marocaine. X. Les érigonides du Maroc. Bulletin de la Société des Sciences Naturelles du Maroc 47: 137-164 pdf

Isaia M, Tolve M, Pantini P (2025) Araneae.it: 2.0: the new updated version of the digital catalog of the Italian spiders and other arachnids (Arachnida: Araneae, Opiliones, Scorpiones, Pseudoscorpiones, Palpigradi, Solifugae). Fragmenta Entomologica 57: 197-204 pdf

Lecigne S, Moutaouakil S, Lips J (2023) Contribution to the knowledge of the spider fauna of Morocco (Arachnida: Araneae) – first note – on new records of cave spiders. Arachnologische Mitteilungen 66: 44-71 pdf

Mammola S, Pavlek M, Huber B A, Isaia M, Ballarin F, Tolve M, Čupić I, Hesselberg T, Lunghi E, Mouron S, Graco-Roza C, Cardoso P (2022) A trait database and updated checklist for European subterranean spiders. Scientific Data 9(236): 1-13 pdf

Millidge A F (1977) The conformation of the male palpal organs of linyphiid spiders, and its application to the taxonomic and phylogenetic analysis of the family (Araneae: Linyphiidae). Bulletin of the British Arachnological Society 4: 1-60 pdf

WSC (2026) World Spider Catalog. Version 27. Natural History Museum Bern, online at http://wsc.nmbe.ch (20.5.2026) doi: 10.24436/2 pdf

Wunderlich J (1995e) Zur Taxonomie europäischer Gattungen der Zwergspinnen (Arachnida: Araneae: Linyphiidae: Erigoninae). Beiträge zur Araneologie 4: 643-654 pdf

Updates
18-01-2024 Image insert
24-05-2020 Distribution update Detail
17-12-2013 Datasheet update Detail
17-12-2013 Image insert