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Cribellate orb-weavers
Uloborus plumipes side 2.jpg
Uloborus plumipes
Scientific classification e
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Order: Araneae
Infraorder: Araneomorphae
Family: Uloboridae
Thorell, 1869
19 genera, 337 species

Uloboridae is a family of nonvenomous spiders, known as cribellate orb weavers or hackled orb weavers. Their lack of venom glands is a secondarily evolved trait. Instead, they wrap their prey thoroughly in silk, cover it in regurgitated digestive enzymes, and then ingest the liquified body.[1]

All members of this family produce a feathery, fuzzy silk called cribellate (or hackled) silk.[2] These spiders do not use an adhesive on their orb webs, but rather the very fine fibers on each strand of silk tend to ensnare prey. Uloboridae webs often have a stabilimentum or zig-zag pattern through the center.


This family has an almost worldwide distribution. Only two species are known from Northern Europe: Uloborus walckenaerius and Hyptiotes paradoxus. Similarly occurring solely in northern North America (e.g. southern Ontario) is Uloborus glomosus.


As of April 2019, the World Spider Catalog accepts the following genera:[3]

  • Ariston O. Pickard-Cambridge, 1896 – Mexico, Panama
  • Astavakra Lehtinen, 1967 – Philippines
  • Conifaber Opell, 1982 – Paraguay, Argentina, Colombia
  • Daramulunia Lehtinen, 1967 – Samoa, Vanuatu, Fiji
  • Hyptiotes Walckenaer, 1837 – Asia, South Africa, North America, Europe
  • Lubinella Opell, 1984 – Papua New Guinea
  • Miagrammopes O. Pickard-Cambridge, 1870 – South America, Central America, Asia, Oceania, Africa, Caribbean, North America
  • Octonoba Opell, 1979 – Asia, United States
  • Orinomana Strand, 1934 – South America
  • Philoponella Mello-Leitão, 1917 – Asia, Africa, North America, South America, Australia, Central America
  • Polenecia Lehtinen, 1967 – Azerbaijan
  • Purumitra Lehtinen, 1967 – Australia, Philippines
  • Siratoba Opell, 1979 – United States, Mexico
  • Sybota Simon, 1892 – Chile, Argentina
  • Tangaroa Lehtinen, 1967 – Vanuatu
  • Uaitemuri Santos & Gonzaga, 2017 – Brazil
  • Uloborus Latreille, 1806 – Asia, Oceania, South America, Africa, North America, Costa Rica, Europe
  • Waitkera Opell, 1979 – New Zealand
  • Zosis Walckenaer, 1841 – South America, Seychelles, Asia, Oceania, Cuba

See also[edit]


  1. ^ http://www.stri.si.edu/sites/publications/PDFs/2006_Weng_et_a_Can_JZool.pdf
  2. ^ Jonathan A. Coddington & Herbert W. Levi (1991). "Systematics and evolution of spiders (Araneae)" (PDF). Annual Review of Ecology and Systematics. 22: 565–592. doi:10.1146/annurev.ecolsys.22.1.565. JSTOR 2097274. Archived from the original (PDF) on 2012-04-02.
  3. ^ "Family: Uloboridae Thorell, 1869". World Spider Catalog. Natural History Museum Bern. Retrieved 2019-04-26.

External links[edit]