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| | Welcome to our newest member, lemajanyvb | |  | 
24-05-2008, 11:51 PM
|  | Knight Commander of the Wild Empire | | Join Date: Aug 2006 Location: Edge of the New Forest, Hampshire
Posts: 5,208
| | | Agroeca Spider egg sac?
These are quite common in some of the Inclosed woods in the New Forest.
I was told a couple of years ago that they are the egg sacs of the heathland spider Agroeca proxima.
Iv'e finally got round to taking a half decent pic of one, so what do the spider experts think?
13mm long & 8mm wide. 
Last edited by Deer Stalker; 24-05-2008 at 11:54 PM.
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25-05-2008, 05:45 AM
|  | Dame Commander of the Wild Empire | | Join Date: Feb 2006 Location: North Kent
Posts: 9,728
| | | Re: Agroeca Spider egg sac?
That's an interesting looking egg sac. It looks like it made out of mortar! Can't help you with id& facts but it's one I've never seen.
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25-05-2008, 05:59 AM
| | Knight Grand Cross of the Wild Empire | | Join Date: Jul 2006
Posts: 13,610
| | | Re: Agroeca Spider egg sac?
It certainly looks like what I was shown as an Agroaca egg sac at Thursley a couple of years back, but I'm no expert on these! |
25-05-2008, 06:15 AM
| | Commander of the Wild Empire | | Join Date: Jan 2007 Location: Lancashire
Posts: 3,464
| | | Re: Agroeca Spider egg sac?
New to me but looks like a neat little bundle. It reminds me of a House martin's nest, a bit clay looking.
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25-05-2008, 06:23 PM
|  | Commander of the Wild Empire | | Join Date: Nov 2007 Location: Cheshire and North Wales
Posts: 1,125
| | | Re: Agroeca Spider egg sac?
It's not a species I am too familiar with so can't say 100%, though I always thought the egg sac was on the end of a short stem of silk which helped keep predators away from the sac? Possibly they vary?
No.9 Spider  |
16-04-2010, 07:43 PM
| | New Member | | Join Date: Apr 2010
Posts: 1
| | | Re: Agroeca Spider egg sac?
I've observed and collected Agroeca egg sacs looking just like that. It's true that they usually are attached to the substrate by a silk stalk, but also they do vary. Depending on what's on offer, the female will collect different kinds of earth particles and/or debris to camouflage the sac – or, quite often, leave it bare (why? disturbed, saving energy, different behaviour in different individuals? would be interesting to know). It should also be possible to distinguish between species on account of sac shape, but I'm afraid I can't tell how, yet.
Why I collect egg sacs? They may contain some rather interesting parasitoid wasps. I'd be happy to recieve any such findings! | | |
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