Oonopidae  Simon, 1890 / Ischnothyreus  Simon, 1892   3 species

Ischnothyreus velox  Jackson, 1908


Male palp with large spermal porus. Bulbus ventrally with protuberance. Embolus with 2 projections on tip. Epigyne not sclerotised. Prosoma yellow-brown, dark, surface granulated. Tibia I-II with 4 pairs. Metatarsus I-II and patella I-II with 2 pairs of robust spines. Opisthosoma yellow to brown, provided with long hairs, dorsal scuticula brown.

Body length male: 2 mm
Body length female: 2 mm
Additional information

Probably occasionally mixed up with I. peltifer (Saaristo 2020: 120).

Imported from tropical areas 100 years ago and now established in greenhouses. This species of SE-Asian origin is not native to Europe (alien species). It had been introduced to Europe at least once and did establish.

  Not established
  No data
Global distribution (WSC 2021): Tropical Asia. Introduced to North, Central, South America, Brazil, Britain, Netherlands, Germany, Egypt, Seychelles, Madagascar, Hawaii
Distribution List
Egypt   (El-Hennawy, 2017a) ||| Germany   (no references) ||| Netherlands   (no references) ||| United Kingdom   (no references) |||

Bristowe W S (1948) Notes on the structure and systematic position of oonopid spiders based on an examination of the British species. Proceedings of the Zoological Society of London 118: 878-891 pdf

El-Hennawy H K (2017a) A list of Egyptian spiders (revised in 2017). Serket 15: 167-183 pdf

Locket G H, Millidge A F (1951) British spiders. Vol. I. Ray Society, London, 310 pp. pdf

Saaristo M I (2001) Dwarf hunting spiders or Oonopidae (Arachnida, Araneae) of the Seychelles. Insect Systematics & Evolution 32: 307-358 pdf

Saaristo M I (2010) Araneae. In: Gerlach J & Marusik Y M (eds.) Arachnida and Myriapoda of the Seychelles islands. Siri Scientific Press, Manchester, pp. 8-306. pdf

WSC (2021) World Spider Catalog. Version 21.5. Natural History Museum Bern, online at (03.01.2021) doi: 10.24436/2 pdf

12-01-2021 Distribution update Detail
02-10-2020 Datasheet update Detail
19-02-2019 Distribution update Detail
30-04-2015 Distribution update Detail