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Linyphiidae  Blackwall, 1859 / Centromerus  Dahl, 1886   71 species

Centromerus desmeti Bosmans, 1986

WSC LSID urn:lsid:nmbe.ch:spidersp:009732

Key to genera | Key to species

Description
Male

Prosoma, chelicera and legs yellow-orange, sternum greyish, opisthosoma grey.

Outer margin of the chelicera with 3 stout teeth, inner margin with 5 minor teeth.
Stridulation organ with 51 fine rips.

Legs: Femur I with one prolateral and one dorsal spine, F II with one dorsal spine, F III+IV spineless. Tibal spines 2221. Metatarsal spines 1100. Tm I 0.26, no Tm IV.

Body length male: 1.96 mm
Female

see male for colour and legs

Body length female: 1.79 mm
Additional information

In the litter of oak forests, 380-1800m.

Character states from linyphiid key
Distribution
  Presence
  No data
Global distribution (WSC 2026): Morocco, Algeria, Spain (Balearic Is.), Italy
Phenology
JanFebMarAprMayJunJulAugSepOctNovDec
 male  female
Figures
species

male Pedipalp, retrolateral view
(Bosmans 1986)

species

male Pedipalp, prolateral view
(Ballarin & Pantini 2020)

species

male Pedipalp, prolateral view
(Ballarin & Pantini 2020)

species

male Pedipalp, retrolateral view
(Ballarin & Pantini 2020)

species

male Pedipalp, retrolateral view
(Ballarin & Pantini 2020)

species

male Pedipalp, ventral view
(Ballarin & Pantini 2020)

species

male Embolic division, ventral view
(Bosmans 1986)

species

male Suprategular apophysis
(Bosmans 1986)

species

male Terminal apophysis
(Bosmans 1986)

species

male Cymbium, dorsal view
(Bosmans 1986)

species

male Chelicera, frontal view
(Bosmans 1986)

species

female Epigyne, ventral view
(Bosmans 1986)

species

female Epigyne
(Ballarin & Pantini 2020)

species

female Vulva, ventral view
(Bosmans 1986)

species

female Vulva, dorsal view
(Bosmans 1986)

species

female Vulva, dorsal view
(Ballarin & Pantini 2020)

species

female Vulva, ventral view
(Ballarin & Pantini 2020)

Distribution List
Algeria   (Bosmans, 1986; Benhacene et al., 2023) ||| Italy   (Ballarin & Pantini, 2020) ||| Morocco   (Bosmans, 1986; Benhalima & Bosmans, 2024) ||| Spain / Balearic Islands   (Lissner, 2016a) |||
References

Ballarin F, Pantini P (2020) Three new species and new records of the genus Centromerus (Araneae, Linyphiidae) from Italy. European Journal of Taxonomy 660: 1-23 pdf

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

Benhalima S, Bosmans R (2024) First historical checklist of spiders (Arachnida: Araneae) from Morocco, between 1840–2024. Zootaxa 5555: 407-535 pdf

Bosmans R (1986) Études sur les Linyphiidae Nord-Africaines IV. Le genre Centromerus Dahl (Araneae: Linyphiidae). Biologisch Jaarboek Dodonaea 54: 85-103 pdf

Lissner J (2016a) Notes on the Majorcan Centromerus Dahl (Araneae, Linyphiidae) with the description of a new cave species (Balearic Islands, Spain). Revista Ibérica de Aracnología 28: 21-24 pdf

WSC (2026) World Spider Catalog. Version 27. Natural History Museum Bern, online at http://wsc.nmbe.ch (13.2.2026) doi: 10.24436/2 pdf

Updates
02-09-2025 Distribution update Detail
09-06-2020 Image insert
08-06-2020 Distribution insert Detail
08-06-2020 Distribution update Detail
12-12-2016 Distribution update Detail
12-12-2016 Image insert