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  • Long-Legged Sac Spider - (Cheiracanthuim mildei)

    Long-Legged Sac Spider - (Cheiracanthuim mildei)

    The commonly seen Long-Legged Sac Spider is best admired from a distance. Their bites can be a bit painful.


    Staff Writer (1/23/2014): This pale spider is typically found in homes and offices (on ceilings, in corners, under beds, etc). They build thin silk tent-like shelters in these corners and dark spaces. The Long-Legged Sac Spider is a fast runner because it is an ambush predator. The silk shelters are not for ensnaring prey, but for resting. Its non-lethal venomous bite is painful humans and can be slow to heal.

    Its thorax is darker than its abdomen. The abdomen has a center line marking that starts thicker at the 'waist' and tapers off before getting halfway down the abdomen. They are somewhat translucent and can range from a dark yellow to almost pale green or white.

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    Details of the:
    Long-Legged Sac Spider


    Category: Spider
    Common name: Long-Legged Sac Spider
    Scientific Name: Cheiracanthuim mildei

    Taxonomy:
      Kingdom: Animalia
       Phylum: Arthropoda
        Class: Arachnida
         Order: Araneae
          Family: Miturgidae
           Genus: Cheiracanthuim
            Species: mildei





    Size (Adult, Length): 5mm to 9mm (0.20in to 0.35in)

    Identifying Colors: white; cream; tan; yellow

    Additional Descriptors: fast, albino, biting, venomous


    North American Reach (Though Not Limited To*): Alabama; Alaska; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Hawaii; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming; Alberta; British Columbia; Manitoba; New Brunswick; Newfoundland and Labrador; Nova Scotia; Ontario; Prince Edward Island; Quebec; Saskatchewan; 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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