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  • Selenopid Crab Spider - (Selenops spp.)

    Selenopid Crab Spider - (Selenops spp.)

    The flattened bodies of Selenopid Crab Spiders allows them to hide in tight spots between rocks and other hard places.

    Picture of Selenopid Crab Spider
    Staff Writer (11/1/2017): Selenopid Crab Spiders have long legs that they sometimes extend out sideways, casting a resemblance to resting crabs. A more familiar resting pose has all eight legs splayed out, giving them a larger appearance.They are found in the warmest regions of the U.S. as well as Mexico. Covered in brown speckles and bands, they are easily camouflaged in nature.

    The body of this genus of spider looks quite typical for arachnids when viewing it overhead. Their most remarkable feature, however, is best seen in its profile. Additional concealment comes from a flattened body. The abdomen is flat, as if pressed down on with a spatula. This lean profile allows them to squeeze into small crevices and remain hidden from danger. This physical feature has given them the nickname "flatties".

    They are nocturnal and hide during the day. At night they emerge and quietly rest, often overlooked in the darkness. For this reason, sightings are rare despite their year-round presence.

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    Details of the:
    Selenopid Crab Spider

    Category: Spider
    Common name: Selenopid Crab Spider
    Scientific Name: Selenops spp.

      Kingdom: Animalia
       Phylum: Arthropoda
        Class: Arachnida
         Order: Araneae
          Family: Seleopidae
           Genus: Selenops
            Species: spp.

    Size (Adult, Length): 8mm to 13mm (0.31in to 0.51in)

    Identifying Colors: brown, black

    Additional Descriptors: flat, speckled, legs, long, venomous

    North American Reach (Though Not Limited To*): Arizona; California; Florida; New Mexico; 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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