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Spider: Brown Button (Widow)

Find, identify & discuss the insects of SANParks
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ScorpionKing
Posts: 27
Joined: Tue Jun 24, 2008 7:33 pm
Location: Scratching around West Africa

Re: Brown Button (Widow) Spider

Unread post by ScorpionKing » Wed Apr 27, 2011 12:59 am

It's Latrodectus geometricus, the brown button spider.

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CoolBreeze
Posts: 1
Joined: Mon Mar 28, 2011 6:43 pm

Re: Does the brown widow spider occur in West Coast NP?

Unread post by CoolBreeze » Fri Apr 29, 2011 1:08 pm

As far as I know, there is only one brown widow spider in the Cape Town area, Latrodectus geometricus. It has a distinct orange hourglass pattern on the ventral side (underside) of the abdomen. My project is testing the thermoregulatory property of the silk projections on the egg case. I am aware of their ubiquitous distribution, but need to find some in a remote, safe area because I will be measuring temperatures overnight with expensive equipment :)


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