More ID requests.

What

Arachnoprince
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Jul 13, 2006
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Found quite a few of these today. Anyone know what they are?

They build webs like widows but have pink eggsacs and build small hides in a leaf centrally located in their webs.









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What

Arachnoprince
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Jul 13, 2006
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I also found these orb weavers, can someone ID them please.





click pictures for larger.
 

What

Arachnoprince
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Jul 13, 2006
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I thought that at first, but there are two major things wrong.

1. No hourglass
2. The eggsacs dont have spines/spikes

*edit* Second orb weaver is a Western Spotted Orbweaver - Neoscona oaxacensis
 
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NRF

Arachnoknight
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Nov 10, 2004
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The first ones seem to be Achaearanea tepidariorum.
The second one could be Neoscona crucifera (?hentzi)
The third one think is also Neoscona sp. Is it possible to get a photo from below?
 

What

Arachnoprince
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It looks similar to Achaearanea tepidariorum but these have almost perfectly round(and pink) eggsacs.

Maybe it is another Achaearanea sp?
 

NRF

Arachnoknight
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Nov 10, 2004
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At least the egg sacs I have seen are not perfectly round but look exactly like the one on your photo. The egg sacs of the three other Achaearanea spp. of my country are also similar in shape, but varies in colour.
Here are some links to egg sacs
http://americanspiders.zacharoo.com/Cob Web Spider/
http://www.twofrog.com/images/housespider7152.jpg
http://www.oeko-msc.de/Achaearanea-tepidariorum.JPG

EDIT: my girlfriend tells me that the egg sac on your photo is also pinkish. I'm not so good at colours my self... :)
 
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What

Arachnoprince
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Jul 13, 2006
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Ok, after searching around I have decided that the first spiders are a Tidarren species, probably Tidarren mixtum, Tidarren haemorrhoidale, or Tidarren sisyphodies.
 

Bastian Drolshagen

Arachnobaron
Old Timer
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Apr 14, 2005
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480
hi,
just a little comment:
Achaearanea tepidariorum has been synonymised and the correct name is now:

Parasteatoda tepidariorum
 

Venom

Arachnoprince
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Jul 21, 2002
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Sweet :) I never could spell Achaearaeaenaaeae reliably lol!!
 

8+)

Arachnolord
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Feb 21, 2007
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645
hi,
just a little comment:
Achaearanea tepidariorum has been synonymised and the correct name is now:

Parasteatoda tepidariorum
I had seen that name and wondered about it, thanks!
 

NRF

Arachnoknight
Old Timer
Joined
Nov 10, 2004
Messages
252
Ok, after searching around I have decided that the first spiders are a Tidarren species, probably Tidarren mixtum, Tidarren haemorrhoidale, or Tidarren sisyphodies.
Great! I'm not familiar with that genus.


hi,
just a little comment:
Achaearanea tepidariorum has been synonymised and the correct name is now:

Parasteatoda tepidariorum
It has not actually been synonymised but transferred to another genus, a genus which was originally erected as a subgenus. It was elevated to genus level and later apparently synonymised with Achaearanea, and now (in 2006) removed from Achaearanea to generic level (with P. tepidariorum as type species). I wonder where the European A. simulans, A. lunata and A. riparia fit in all this... :)
http://research.amnh.org/entomology/spiders/catalog/THERIDIIDAE.html
 
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