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Photo#488003
Cribellate spider - Badumna longinqua - female

Cribellate spider - Badumna longinqua - Female
Hayward, Alameda County, California, USA
September 24, 2010
Size: 13mm
This spider originally was on my green bin, doesn't move around much, and is the one that laid an egg sac around 11/8 in the jar I have it in. The babies hatched around 12/16. Between then and now, she laid another one. I had put it outside with the lid cracked, and there are a few babies left in there now. The mother is still alive, but hangs around at the bottom now (presumably darker).
It is cribellate, and uses its rear legs to pull out/tease the silk. It has boss(es?), and from what I can tell, one row of calamistrum. I looked at it under a dissection scope, but I still can't tell what it is.

Images of this individual: tag all
Cribellate spider - Badumna longinqua - female Cribellate spider - Badumna longinqua - female Cribellate spider - Badumna longinqua - female Cribellate spider - Badumna longinqua - female Cribellate spider - Badumna longinqua - female Cribellate spider - Badumna longinqua - female Cribellate spider - Badumna longinqua Cribellate spider - Badumna longinqua

More babies
The second egg sac has hatched. There were no more than two left in the jar from the previous sac. I noticed a day or two ago that the mother was checking out the sac.
There was a third egg sac attached to the side of the jar some time between the last one and 2/5.

 
Very interesting
Any close-ups of the babies?

 
Added a photo
of the babies

Moved
Moved from Badumna longinqua.

Moved
Moved from Spiders.

Moved
Moved from ID Request.

Badumna longinqua
is my guess.

 
This absolutely is Badumna lo
This absolutely is Badumna longinqua. It is one of the most common synanthropic spiders along coastal California.

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