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Saturday, September 8, 2012

Big Brown Spider - the Orb Weaver

For the past few weeks, I've noticed a big, brown spider outside my front door resting on an equally big circular web. The web itself was about 2 feet wide and I certainly couldn't walk out the door without stepping right into it. It seemed to appear and begin spinning the web around 9pm and by 6am the following morning, the web and the spider were gone - only to appear in the same spot the following evening. 


I did a little research and found out that the spider is actually called a Nocturnal Orb Weaver.


The Nocturnal Orb Weaver is a garden spider that comes out at night, creates a big "orb" shaped web and waits for an unsuspecting insect to land in the sticky web (most likely attracted to the lights by the door to the house). They are most noticeable in the late summer and fall because that's when the spiders and their webs are the largest. It's usually the female sitting in the web and soon she will lay her last batch of eggs and die before the first frost.


They are non aggressive and not harmful to humans or animals. In fact, at the first sign of threat, they usually flee the scene. During the day, the spider will either sit motionless on the web or take cover in a nearby leaf or corner.


Fun fact: Charlotte, the spider in E.B. White's "Charlotte's Web," was an orb weaver. She was an Araneus cavaticus, sometimes called a "Barn Spider."

All orb weavers spin some sort of web consisting of smaller circles within larger circles and the "spokes" going out diagonally from the center outwards toward the outer circle.



So if you see one outside your front door or on your lawn over the next few weeks, don't be alarmed and let them just do their job catching and eating common insect pests.




8 comments:

  1. Really nice photos of the web and web masters.

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  2. Hi Kate
    I usually dislike getting too close to spiders but I do find them fascinating. Your post made it easy to admire one but not worry that he's going to be crawling up my arm :)
    Astrid

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    1. Thanks Astrid - spiders can seem creepy, especially when they are portrayed as such in the movies, but they are actually very good in nature! Glad you enjoyed the post.

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  3. I have two of those in my yard right now. They eat all the pesky crane flies that have been in my yard. I don't mind them, just to look at... I like to keep my distance.

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  4. I've noticed an abundance of orb weavers this year in my area, three build their webs around my chicken coop. They are quite fascinating.

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  5. I have two out back very close to one another I'm assuming they are not territorial,I actually have to move them because when my wife sees them she is going to want me to kill them and I don't want to... how can I handle them without injuring or hurting them?

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    1. Hi Alan! If I were trying to move the spider, I would shake the web and then try to catch them in a jar or something similar. Then move it to another location. Let me know if that works and if they stay away! Good luck!

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  6. Good info, thanks. Have 2 out the back door. they are very energetic and industrious.

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