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Home » Guide » Arthropods (Arthropoda) » Chelicerates (Chelicerata) » Arachnids (Arachnida) » Spiders (Araneae) » True Spiders (Araneomorphae) » Entelegynae » Cheiracanthiidae » Long-legged Sac Spiders (Cheiracanthium) » Cheiracanthium mildei
Photo#1050085
Spider in its own sleeping bag? - Cheiracanthium mildei
Copyright © 2015 Jay

Spider in its own sleeping bag? - Cheiracanthium mildei
Oakland, Alameda County, California, USA
March 26, 2015
Size: 0.5 inch
We call this the "sleeping bag spider" -- has been around for three days, in the corner between wall and ceiling, and each night spun a little cocoon around itself.

All we are wondering -- is it laying eggs? It DOES look like there are no eggs in the silky husks of the "sleeping bags."
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Contributed by Jay on 26 March, 2015 - 11:38pm
Last updated 4 February, 2023 - 8:13pm

Moved
Moved from ID Request. I'm not sure it's molting yet. It is hiding in a protective retreat. A lot of spider make little houses that they hide in. This one is not making eggs yet, but that might be the next step.

Can you please crop your image so that everyone can see the spider more closely? Only you & editors can see the larger version.
… Lynette Elliott, 27 March, 2015 - 7:55am login or register to post comments

most likely

It appears to be molting (shedding) its exoskeleton. Spiders do this due to growth, once mature they will not molt anymore. These are common in homes.
… Lisa I., 27 March, 2015 - 1:03am login or register to post comments

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