Guess the mimic

From entomologist/photographer Alex Wild, courtesy of Matthew Cobb:

16 Comments

  1. GBJames
    Posted June 3, 2017 at 1:33 pm | Permalink

    I’m guessing it is a spider.

    • BobTerrace
      Posted June 3, 2017 at 1:34 pm | Permalink

      Agree.

      • rickflick
        Posted June 3, 2017 at 1:37 pm | Permalink

        Agree. The eyes give it away.

        • Posted June 3, 2017 at 1:44 pm | Permalink

          The 8 legs contribute too.

          • Jenny Haniver
            Posted June 3, 2017 at 2:09 pm | Permalink

            I’d say spider because of the above reasons.

            • dargndorp
              Posted June 3, 2017 at 2:15 pm | Permalink

              Inigo agrees: silly spider

          • Posted June 3, 2017 at 2:48 pm | Permalink

            With the front two legs mimicking antennae.

          • Steve
            Posted June 3, 2017 at 3:49 pm | Permalink

            Agree. 8 appendages.

    • W.Benson
      Posted June 3, 2017 at 2:15 pm | Permalink

      Right on!

  2. Jacques Hausser
    Posted June 3, 2017 at 2:05 pm | Permalink

    Incredibly precise mimicry – the constriction of the cephalothorax gives a convincing imitation of the head and thorax of an ant, and the first legs are really antenna-like (with too many articulations). But the eyes and cheliceres tell the truth. A Salticid (?) spider.
    (To prof. Moran: that cannot be the result of genetic drift !)

  3. W.Benson
    Posted June 3, 2017 at 3:09 pm | Permalink

    Is the model the tropical American ponerine ant ‘Neoponera’ or ‘Pachycondyla villosa’? The Myrmecos blog calls P. villosa the “hormiga tigre” and comments that it “carries a sting [that is] best avoided.”

  4. Posted June 3, 2017 at 7:44 pm | Permalink

    Yes, a very good ant mimicking spider. I just saw a different species of ant mimicking spider a few days ago.

  5. Posted June 3, 2017 at 10:57 pm | Permalink

    I still don’t understand what selection pressures cause so many spiders to mimic ants.

    • loren russell
      Posted June 3, 2017 at 11:28 pm | Permalink

      You haven’t messed with Neotropical ants, I guess? I start with a presumption that wasp-y looking ants pack a serious sting.

      Another take — more evidence that birds can count to four [or eight?] — whatever else ant mimics do, they tend to appear 6-legged.

      • Posted June 4, 2017 at 2:09 pm | Permalink

        Yes, I need to get out more. Where I live, the spiders are pretty fearsome and the ants are pretty wussy.

  6. Dan A.
    Posted June 3, 2017 at 11:14 pm | Permalink

    Definitely a spider. You can tell that the antennae are actually its 2 front legs giving it a grand total of eight and the the number of eyes are a giveaway as well.


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