Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
 

Register · Log In
HomeGuideID RequestRecentFrassForumsDonateHelp
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Calendar
Upcoming Events

Photos of insects and people from the 2024 BugGuide gathering in Idaho July 24-27

Moth submissions from National Moth Week 2024

Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27

Photos of insects and people from the 2018 gathering in Virginia, July 27-29


Previous events
TaxonomyBrowseInfoImagesLinksBooksData
Home » Guide » Arthropods (Arthropoda) » Chelicerates (Chelicerata) » Arachnids (Arachnida) » Spiders (Araneae) » True Spiders (Araneomorphae) » Synspermiata » Tube Web Spiders (Segestriidae) » Segestria » Segestria pacifica
Photo#343773
Segestria? - Segestria pacifica
Copyright © 2009 Ken Schneider

Segestria? - Segestria pacifica
Purisima Creek Redwoods OSP, San Mateo County, California, USA
October 15, 2009
Size: 8 mm

Images of this individual: tag all
Segestria? - Segestria pacifica Segestria? - Segestria pacifica
tag · login or register to post comments
Contributed by Ken Schneider on 16 October, 2009 - 11:52pm
Last updated 19 October, 2009 - 9:48pm

Moved
Moved from Segestria.

From Darrell Ubick, who was kind enough to take a look at these pics:

"Yes it is a Segestria, and probably S. pacifica. Chamberlin and Ivie did not do a thorough job of separating the species, but S. bella is smaller but has a relatively larger male palp and has a more restricted (and inland) distribution".
… Ken Schneider, 19 October, 2009 - 9:48pm login or register to post comments

Moved
Moved from Spiders.
… Ken Schneider, 17 October, 2009 - 1:30pm login or register to post comments

Certainly looks like Segestri
Certainly looks like Segestria to me -- in fact it looks like the splitting image of S. bavarica, not that that will help you much. What are your choices, bella and pacifica?

There is no epigyne; you apparently have to look at the spines in a ventral view of metatarsus I, as well as consider size, abdominal pattern, and location, but where to find this information on Nearctic species, I don't know.

-K
… Kevin Pfeiffer, 17 October, 2009 - 1:47am login or register to post comments

 
pacifica ?
I'm not sure what central California means (range for bella), but if it excludes the coast then I think this must be pacifica.
… Lynette Elliott, 17 October, 2009 - 10:18am login or register to post comments

 
Normally -
"central California" includes the Bay Area and the coast, though. I'll try to get the Chamberlin and Ivie paper and/or email Darrell Ubick about this one...
… Ken Schneider, 17 October, 2009 - 1:29pm login or register to post comments

Comment viewing options
Select your preferred way to display the comments and click 'Save settings' to activate your changes.

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

Printer Friendly Version 		Terms of Use
Privacy Statement
Site Map
Contact