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Home » Guide » Arthropods (Arthropoda) » Chelicerates (Chelicerata) » Arachnids (Arachnida) » Spiders (Araneae) » True Spiders (Araneomorphae) » Entelegynae » Jumping Spiders (Salticidae) » Platycryptus » Platycryptus californicus
Photo#214496
grey and black jumping spider in egg sac - Platycryptus californicus - female
Copyright © 2008 Lynette Elliott

grey and black jumping spider in egg sac - Platycryptus californicus - Female
Thompson Falls, Sanders County, Montana, USA
August 13, 2008
probably another californicus?

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grey and black jumping spider in egg sac - Platycryptus californicus - female grey and black jumping spider in egg sac - Platycryptus californicus - female
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Contributed by Lynette Elliott on 15 August, 2008 - 11:12pm
Last updated 17 August, 2008 - 10:59pm

Moved
Moved from Platycryptus.
… Jay Barnes, 17 August, 2008 - 10:59pm login or register to post comments

Yes to both
That's californicus, and yes she's resting on either a sac of eggs or a sac of spiderlings.

All the adult female jumpers I've found build these two-celled retreats just as you've shown here. One thickly padded and sealed all around to hold her eggs, and the other just a thin cover-up typical of her previous constructions. It's often hard to tell, but usually the thin cover-up has an opening on one or both ends which allows her to escape in a hurry if necessary.
… Jay Barnes, 17 August, 2008 - 10:59pm login or register to post comments

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