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Home » Guide » Arthropods (Arthropoda) » Chelicerates (Chelicerata) » Arachnids (Arachnida) » Spiders (Araneae) » Unidentified Spider Egg Sacs, Webs, Retreats, and Droppings
Photo#269847
Inidentified arthropod artifact
Copyright © 2009 Mark Fox

Inidentified arthropod artifact
Pearl River WMA, Crawford's Landing, Slidell, St. Tammany Parish, Louisiana, USA
April 14, 2009
Size: ~2cm
I found this on sweetgum, right on the bank of the Pearl River. Any ideas? Clearly this structure was attached to the leaf with silk, and it appeared to be occupied. Maybe an egg sac? If it ecloses/hatches out I will update this photo.

Images of this individual: tag all
Inidentified arthropod artifact Inidentified arthropod artifact
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Contributed by Mark Fox on 27 April, 2009 - 10:33am
Last updated 6 June, 2009 - 11:10pm

Must be a spider egg sac
Do you have a more zoomed-in shot of it? There is a gnaphosid of uncertain identity that makes a mud-covered egg sac that resembles this. It would definitely be worth raising the spiderlings if they emerge.
… Charley Eiseman, 7 May, 2009 - 4:44pm login or register to post comments

 
Posted closer view.
Posted a closer zoom of the same image. I'm pretty sure I kept the egg sac, so I'll have to take another look to see who emerges. What can I feed newly emerged spiderlings?
… Mark Fox, 7 May, 2009 - 5:36pm login or register to post comments

 
Good question.
I'm a failure at spiderling rearing. I suggest posing the question on the general forum. This may or may not be the same spider I'm talking about (which was described in New York), but I believe that some of the egg sacs associated with it were covered with coarse, granular material like this rather than with the more typical smooth mud.
… Charley Eiseman, 7 May, 2009 - 6:01pm login or register to post comments

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