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Home » Guide » Arthropods (Arthropoda) » Chelicerates (Chelicerata) » Arachnids (Arachnida) » Spiders (Araneae) » True Spiders (Araneomorphae) » Entelegynae » Cobweb Spiders (Theridiidae) » Theridion » Theridion dilutum
Photo#507731
Theridion - Theridion dilutum
Copyright © 2011 Jason R Eckberg

Theridion - Theridion dilutum
Las Vegas within the Clark County Wetlands Park, Clark County, Nevada, USA
April 20, 2011

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Theridion - Theridion dilutum Theridion - Theridion dilutum Theridion - Theridion dilutum Theridion - Theridion dilutum
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Contributed by Jason R Eckberg on 21 April, 2011 - 1:21pm
Last updated 10 June, 2012 - 9:57am

Theridion dilutum
I agree with Kevin on this ID based on range, pattern & coloring.

Moved from Theridion.
… Lynette Elliott, 10 June, 2012 - 9:57am login or register to post comments

Moved
Moved from Spiders.
… Lynette Elliott, 3 May, 2011 - 9:58am login or register to post comments

I've got another possibility
I've got another possibility for you: Theridion dilutum. Levi 1957a shows a dorsal habitus view that is rather similar and he writes that some show this "white cross band".

(I tend to first think of eastern species as I've seen more of them.)
… Kevin Pfeiffer, 22 April, 2011 - 1:54am login or register to post comments

One possibility is
One possibility is Theridion varians, which as the name perhaps suggests can vary greatly in its dorsal pattern.

Do you still have it? You could try to shoot a ventral view.
… Kevin Pfeiffer, 21 April, 2011 - 3:09pm login or register to post comments

 
New Images
I added a couple ventral shots, T. varians seems most likely based on the carapace but there are definitely similarities to S. simile. I appreciate your help.
… Jason R Eckberg, 21 April, 2011 - 4:12pm login or register to post comments

 
..
Hi Jason,

I'm still leaning toward simile, but of course the medial marking on the carapace still is puzzling. Levi 1957a writes "yellow-white to brown with some duskiness". There are a good number of Theridion species, though.

If you are willing to send the specimen, I'd be happy to take a closer look. Just drop me a note: bg-at-tiros.net
… Kevin Pfeiffer, 22 April, 2011 - 1:43am login or register to post comments

Hmmm, interesting theridiid.
Hmmm, interesting theridiid. I was going to say Simitidion simile, but the ones I have images of have an all dark brown carapace, so will need to do a bit more research.
… Kevin Pfeiffer, 21 April, 2011 - 2:25pm login or register to post comments

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