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Can someone identify this?

Discussion in 'Nature/Habitat/Garden Corner' started by Neighbor, Dec 1, 2007.

  1. Neighbor

    Neighbor Member

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    Does anyone know what kind of spider this is? It is about 3 inches in size with brigt yellow markings.
     

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    Neighbor, Dec 1, 2007
    #1
  2. qzpmal

    qzpmal New Member

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    This is probably one of many species of Argiope Spiders, which are completely harmless.

    qzpmal
     
    qzpmal, Dec 1, 2007
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  3. Neighbor

    Neighbor Member

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    Thanks. I was curious, because he is hanging out in our garden. We have not seen one that big with bright yellow markins before. It's good to know that he is harmless.
     
    Neighbor, Dec 2, 2007
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  4. qzpmal

    qzpmal New Member

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    No problem. I just did a google search on spider bright yellow stripe and a lot of records came up. I could not find an exact match but many similarities with others of the same species.

    qzpmal
     
    qzpmal, Dec 3, 2007
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  5. Broadlandsnaturalist

    Broadlandsnaturalist New Member

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    It might be a...


    White-Backed Garden Spider
    Argiope trifasciata

    Typical Orb Weavers, Family Araneidae

    At first you may confuse this spider with its close relative, the yellow garden spider. A closer look will reveal a slightly smaller spider with a more sharply pointed back end. The abdomen is patterned with many thin silver and yellow transverse lines and thicker black, spotty lines. The carapace is small and covered with silvery hairs. White-backed garden spider females are larger than the males, ranging from 15-25mm as opposed to 4-5.5mm for the males. Compared to the yellow garden spider, this orb weaver tends to build its web slightly lower in the vegetation. It also is less likely to be found in shade and is more tolerant of open areas with sparse brush. White-backed garden and yellow garden spiders feed on similar prey.

    susanne ortmann- naturalist at the nature center
     
    Broadlandsnaturalist, Dec 12, 2007
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