Sparassidae  Bertkau, 1872 / Olios  Walckenaer, 1837   8 species

Olios sericeus  (Kroneberg, 1875)


Bulbus in its distal half with a small and narrowly bent embolus, bearing a serrate ridge. Tegulum with a massive apophysis, extending prolaterally beyond the cymbium; prolateral and ventral margins of the apophysis serrated. Single retrolateral tibial apophysis broad, bent dorsad.

Body length male: 9.6–10.7 mm

Epigyne with median slit, the latter diverging regularly posterior, but abruptly anterior, forming wide pit. Internal duct system with a glandular structure close to the copulatory openings, otherwise with simple course, only with a small loop close to fertilisation ducts.

Variation: Median margins of lateral lobes with or without humps in anterior half. Surface of internal duct system more or less furrowed.

Body length female: 9.6-10.7 mm
  No data
Global distribution (WSC 2024): Caucasus, Kazakhstan, Central Asia, Iran, Afghanistan
 male  female
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.

Armenia   (Zarikian & Kalashian, 2021) ||| Azerbaijan   (Otto, 2022) ||| Georgia   (Otto, 2022) ||| Russia, Southern   (Otto, 2022; Ponomarev, 2022) |||

Jäger P, Otto S (2007) New records of Olios sericeus (Kroneberg 1875) with notes on its taxonomy and biogeography (Araneae: Sparassidae: Sparassinae) Revista Ibérica de Aracnología 14: 19-24 pdf

Khasayeva S I, Huseynov E F (2019) New records of spiders (Arachnida, Aranei) from Azerbaijan. Euroasian Entomological Journal 18: 357-361 pdf

Otto S (2022) Caucasian spiders. A faunistic database on the spiders of the Caucasus Ecoregion. Database version 02.2022. Internet:

Ponomarev A V (2022) Spiders (Arachnida: Araneae) of the southeast of the Russian Plain: catalogue, the fauna specific features. SSC RAS Publishers, Rostov-on-Don, 640 pp. pdf

WSC (2024) World Spider Catalog. Version 25.0. Natural History Museum Bern, online at (22.01.2024) doi: 10.24436/2 pdf

Zarikian N A, Kalashian M Y (2021) An annotated checklist of spiders deposited in the Arachnida collection of the Institute of Zoology, Scientific Center of Zoology and Hydroecology of the NAS RA, Yerevan, Armenia. Part I. Arachnologische Mitteilungen 61: 11-19 pdf

01-03-2021 Distribution insert Detail
23-01-2020 Distribution update Detail
23-01-2020 Image insert