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Old 10-11-2010, 05:44 PM   #1
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Default a male black widow?

I think that this is a male black widow spider. Found him in the basement when I was doing laundry. I am pretty sure that he is a male black widow. Any other thoughts or id?
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a male black widow?-black-widow-male.jpg  
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Old 10-11-2010, 08:22 PM   #2
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I'm no expert, but I looked at all the Bugguide images of Black Widows, and all of them have distinct abdominal markings unlike yours. There is a similar one to yours posted there, but it hasn't been identified.
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Old 10-12-2010, 02:15 AM   #3
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I'll guess it's a Common House Spider, Parasteatoda tepidariorum. They're in the same family as the widow spiders, called cobweb spiders or Theridiidae
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Old 10-12-2010, 02:51 AM   #4
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I don't know how to identify spiders, but in MO everywhere I find black widows I find lots of webbing attached to the grass in the area. It's usually a bunch of webbing attached to very short grass. They must come out at night because the spiders themselves are under rocks. You could look around the yard under rocks and logs and look for little bunches of webbing attached to short grass to try locating some. I don't have a good pic of the webbing, but you can see some of it in the photo attached.
a male black widow?-bwid.jpg
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Old 10-12-2010, 02:29 PM   #5
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Here's a link with a photograph.
Can't vouch for the accuracy, though. . .

Black Widow Spider (Latrodectus hesoerus)
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Old 10-12-2010, 02:34 PM   #6
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And these two websites have photographs of male black widows that look quite different from that of the previous site:

Spider Pictures: Black Widow - Latrodectus mactans

Brown Recluse Spider
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Old 10-12-2010, 02:42 PM   #7
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When all else fails, there's BugGuide!
Scroll down for the different species.

Genus Latrodectus - Widow Spiders - BugGuide.Net
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Old 10-12-2010, 04:37 PM   #8
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Thanks for all the help. This is one of the reasons why I love this site, the wealth of information and the willingness of everyone to help out is amazing to me.

The little guy is quite happy in my basement after his long stowaway ride in Mary's laundry! I am sure that Mary will be happy to know that along with the multitude of leps and odes that she raises, that she is not also raising black widow spiders!
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Old 10-12-2010, 09:16 PM   #9
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Pheww!
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arachnids, black, black widow, blackwidow, bugguide.net, genus, house spider, identification, identify, latrodectus, latrodectus mactans, male, parasteatoda, spider, spider identification, spiders, tepidariorum, widow

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