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Sunday, April 20, 2008

Chilean Tiger Spider vs Brown Recluse, Araña de Rincón

I found this spider on my wall, don't kill it!

Tiger Spider in South America

It's called Araña Tigre, or Tiger Spider, it's harmless to humans. But it is the principle predator of the Araña de Rincón (Loxosceles laeta), or Chilean Recluse.

Here's a picture of the Araña de Rincón:



This Chilean Recluse is even more dangerous than its really dangerous North American counterpart, the Brown Recluse (Loxosceles reclusa).

Hobo Spider Web Site
details a history of the Araña de Rincón:
Recluse spiders were the first spider group to be recognized as a causative agent of the disease state now known as necrotic arachnidism, and this condition, when caused by a recluse spider, is properly termed loxoscelism. Loxoscelism was first recognized in 1872 when Chilean physicians linked a peculiar skin lesion known as the "gangrenous spot of Chile"...

All recluse spiders...are now considered venomous to humans...Most species have a mild temperament, and bite only when accidentally pressed against skin, but others, such as the Chilean recluse, are less even tempered.
Chilean paper El Observatorio provides a Spanish-language guide to reducing the Arana de Rincon threat, note they also advocate building a shrine to the Tiger Spider.

Ohio State University gives us an even-tempered, North American fact sheet on dealing with Brown Recluse spiders, all of which applies to the Chilean Recluse.

Remember, don't kill the Tiger Spider!

Chilean Tiger Spider Image
 

1 Comments:

At 12:33 AM, Blogger Joel said...

Here's hoping they do their job, I do mine, and I never run into a tiger spider, but thanks for the info!

 

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