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  • House Spider - (Metaltella simoni)

    House Spider - (Metaltella simoni)

    One of many types of House Spiders, Metaltella simoni actually came a long way to make itself at home in yours.

    Staff Writer (12/30/2014): The dark brown House spider, M. simoni is native to the eastern South American countries of Argentina, Brazil and Uruguay. It arrived in North America in the 1900's via trade routes between the two continents. It has established a stable presence in the warm, humid states along the Gulf of Mexico as well as parts of California. M. simoni appears to be outcompeting native spiders, like T. brunnea, for resources, which is cause for concern in those regions.

    It is not known to be harmful to humans. Its gangly legs and dark body make it easy to spot on light-colored ceilings and walls. It is also comfortable living outdoors and can be found on trees, on the ground and under rocks and leaf litter. Its web is a fluffy mess of spider silk that has been combed out to maximize its efficacy. Females lay fertilized eggs in a sac of bumpy silk and hide it using dirt, debris or other nearby material.

    This spider is commonly mistaken for a Brown Recluse (even though it clearly lacks the tell-tale dark 'violin-shaped' mark on its head) as well as the non-aggressive Hacklemesh Weaver spider.

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    Details of the:
    House Spider

    Category: Spider
    Common name: House Spider
    Scientific Name: Metaltella simoni

      Kingdom: Animalia
       Phylum: Arthropoda
        Class: Arachnida
         Order: Araneae
          Family: Amphinectidae
           Genus: Metaltella
            Species: simoni

    Size (Adult, Length): 6mm to 10mm (0.24in to 0.39in)

    Identifying Colors: brown, black

    Additional Descriptors: shiny, glossy, scrawny

    North American Reach (Though Not Limited To*): Alabama; California; Florida; Georgia; Louisiana; Mississippi; North Carolina; South Carolina; Texas; Mexico

    * Keep in mind that an insect's reach is not limited by lines on a map and therefore may appear in areas/regions/states beyond those listed above.

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