Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Home » Guide » Arthropods (Arthropoda) » Chelicerates (Chelicerata) » Arachnids (Arachnida) » Spiders (Araneae) » True Spiders (Araneomorphae) » Entelegynae » Cribellate Orb Weavers (Uloboridae) » Uloborus

Genus Uloborus

Uloborus - Uloborus glomosus - female Uloborus in the family Uloboridae found in Austin, Tx - Uloborus glomosus Cyclosa sp.? - Uloborus glomosus Uloborus glomosus with babies - Uloborus glomosus - female Spider - Uloborus diversus - female Uloborus Spider - Uloborus glomosus - female Uloborus glomosus? - Uloborus glomosus Uloborus - Uloborus diversus - female
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Chelicerata (Chelicerates)
Class Arachnida (Arachnids)
Order Araneae (Spiders)
Infraorder Araneomorphae (True Spiders)
No Taxon (Entelegynae)
Family Uloboridae (Cribellate Orb Weavers)
Genus Uloborus
Explanation of Names
From Greek ouloboros (ουλοβορος)- "with deadly bite"
Ironically, this genus- like the rest of its family, and unlike most or all other spiders- has no venom.
Numbers
4 species in the USA
Range
campestratus (cinereus) - USA - Florida and gulf states, eastern and southern Mexico.
diversus - USA - Widespread in the western US from Oregon, Utah and eastern Arizona south into western Mexico.
glomosus - USA - Widespread in the the eastern US, north into southern Canada, south into Mexico.
segregatus - USA - Lower Rio Grande Valley of Texas and adjacent Mexico.
Remarks
Some species from this genus were moved to Philoponella.
Internet References
~ digitallibrary.amnh.org - Detailed descriptions, maps & drawings. Muma & Gertsch, 1964 (PDF).
Contributed by Troy Bartlett on 16 February, 2004 - 1:20pm
Additional contributions by Lynette Elliott, Chuck Entz
Last updated 13 May, 2011 - 11:38am

Disclaimer: Dedicated naturalists volunteer their time and resources here to provide this service. We strive to provide accurate information, but we are mostly just amateurs attempting to make sense of a diverse natural world. If you need expert professional advice, contact your local extension office.

Contributors own the copyright to and are solely responsible for contributed content.
Click the contributor's name for licensing and usage information.
Everything else copyright © 2003-2025 Iowa State University, unless otherwise noted.

Bugguide is hosted by:

Plant Pathology, Entomology and Microbiology at Iowa State University logo