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Linyphiidae  Blackwall, 1859 / Centromerus  Dahl, 1886   71 species

Centromerus caecus  Lecigne, 2023

Description
Female

Colour: prosoma, legs and sternum very pale yellow, chelicerae only slightly darker; opisthosoma uniformly pale grey.
Eyes: completely absent.
Chelicerae: three promarginal teeth, four retromarginal minute teeth
Legs: chaetotaxy 2221; one prolateral spine on femur I in the distal quarter; position of trichobothrium on metatarsus I 0.26

Epigyne: poorly chitinised. Wide genital fossa, anteriorly provided with a folded scape, it's distal part strongly narrowing. Lateral parts of the copulatory ducts visible in transparency.
Vulva: spermathecae inclined inwards, rounded anteriorly and posteriorly elongated. Copulatory ducts posteriorly inclined outwards by about 45° without extending anteriorly beyond the spermathecae.

Body length female: 1.12-1.32 mm mm
Additional information

Troglobiont species.

Distribution
  Presence
  No data
Distribution comment: Only known from one cave in the western Rif.
Global distribution (WSC 2024): Morocco
Phenology
JanFebMarAprMayJunJulAugSepOctNovDec
 male  female
Figures
Distribution List

"No references" does not mean that the species does not occur in this country, but that we have not yet inserted the reference for it. We are working on it.

Morocco   (Lecigne et al., 2023) |||
References

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

WSC (2024) World Spider Catalog. Version 25.5. Natural History Museum Bern, online at http://wsc.nmbe.ch (31.10.2024) doi: 10.24436/2 pdf

Updates
17-01-2024 Datasheet update Detail
15-01-2024 Image insert
10-01-2024 Distribution insert Detail