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Photo#384546
Attack of the Pseuton Spiders! Internecine War! - Holocnemus pluchei

Attack of the Pseuton Spiders! Internecine War! - Holocnemus pluchei
Fullerton Arboretum, Fullerton, Orange County, California, USA
April 8, 2010
Hunched over the computer, I'm puzzling over the ID of several spiders. Grandson Owen peers over my shoulder and volunteers: "Oh, those are Pseuton spiders." Before posting, I verify spelling with him, but am a bit skeptical as to the result since, at age four, he isn't that great a speller. (Personally, I have a hunch this is the marbled cellar spider Holocnemus pluchei, but what do I know?)

Images of this individual: tag all
Attack of the Pseuton Spiders! Internecine War! - Holocnemus pluchei Attack of the Pseuton Spiders! Internecine Turmoil! - Holocnemus pluchei Attack of the Pseuton Spiders! Internecine Turmoil! - Holocnemus pluchei Attack of the Pseuton Spiders! Internecine Turmoil! - Holocnemus pluchei

Moved
Moved from Cellar Spiders.

 
You are correct about this be
You are correct about this being Holocnemus pluchei. It is an extremely common spider in California and throughout the southwestern U.S. and is the only regional pholcid with a wide, black ventral stripe that runs the length of the spider's underside. It is native to the Mediterranean region and are much more likely to make their webs in exposed areas compared to other pholcids.

 
Thanks so much for the ID and for the move
I was at the site a couple days back, and the cacti are literally covered with webs. Precious few flies - or insects other than cochineal - were at the scene.

Moved
Moved from Spiders.

Cellar spiders.
Clearly in the family Pholcidae, but I'm not totally certain after that.

 
Thanks, Eric
However, I'm sure Owen will take issue with you.

 
Haha!!
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