'[They] look like tiny disco balls': Meet the Mirror-Ball Spider, the tiny dancer sparkling all over the tropic zone of the world

Author image for Ayala Sorotsky
Ayala Sorotsky • Writer and Editor
Jul 2, 2026 7:30 PM EDT

Oh, Mother Nature, you always have something new up your green sleeves.

I'm deathly afraid of bugs and insects of any kind. I think it boils down to one traumatic memory I have from when I was around 3 or 4 - my parents and I were on a ride somewhere, and they gave a lift to this one person who entered the shotgun seat, and while the car was still stationary, he rolled the window down (yes, I'm that old that car windows had to be rolled down). Suddenly, from the field right by the roadside, a giant grasshopper jumped all the way to my tiny toddler legs on the seat behind. I screamed in fear while the grow-ups laughed, and my mom sitting next to me shooed the grasshopper back out. I brought it up with my parents years later - they have no recollection of this event.

My fear of everything insectoid persisted regardless, but this is exactly why I purposely keep myself interested in them - to reduce my fear, little by little, with every amazing fact I find. I started with bringing you all listicles of bug memes, to pollinate your happiness. But as I dove deeper and deeper into the bug world of the internet, I've found some amazing things - like the Bridgey's Midgey, which checks all the boxes of "fascinating and weird Australian wildlife". I was hooked.

And this is why I bring to your attention the Mirror-Ball Spider today. This is one tiny, sparkly, tropical, and downright amazing spider to learn about. I'm not kidding when I say that all these amazing "yucky" animals that come with some mind-blowing facts about them will probably cure my fear of bugs at some point or another. Whether this past memory with the car ride and the grasshopper is real or a figment of my mind, it doesn't matter - because in the long run, it makes me learn about the beauty Mother Nature presents us all the time.

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  • 01
    Mirror-Ball Spiders: these spiders are covered in shimmering, mirror- like panels that can shrink or expand; the panels are produced by a digestive secretion known as guanine, which seeps into the lining of the spider's gut and forms crystalline structures just beneath the surface of the abdomen
    via SixteenSeveredHands
  • 02
    NICKY BAY PHOTOGRAPHY http://sgmacro.blogspot.com
    via NICKY BAY PHOTOGRAPHY
  • 03
    Cheezburger Image 10643398400
    via SixteenSeveredHands

  • Before we move to the interesting facts, the nitty-gritty of the subject ahead, I want to stop and admire how this spider looks. The Mirror-Ball Spider looks shinier than a 70s club disco ball, and sparklier than a drag queen on the runway. I truly think this is an amazing example of the absolute beauty Mother Nature can produce. I'm obsessed.

  • 04
    itsswhitneywhspr Ok wait the fact that this is basically the same stuff that gives fish scales their shine is blowing my mind. Nature really recycled the same sparkly ingredient for both spiders and fish and were just here wearing glitter we bought at the craft store.
    via itsswhitneywhspr
  • 05
    Alt0173 Natures recycles all the time. Our lungs are parts of our stomach that got repurposed millions and millions of years ago.
    via Alt0173
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    Cheezburger Image 10643398912
    via All About Animals
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    SixteenSevered Hands OP Spiders of the genus Thwaitesia are often described as mirror-ball spiders, because their bodies are lined with reflective panels that make them look like tiny disco- balls. They're also known as dewdrop spiders or sequined spiders.
    via SixteenSeveredHands
  • 08
    The shimmering panels are produced by a digestive secretion known as guanine, which seeps into the tissue that surrounds the spider's gut, forming crystalline cells just beneath the surface of the abdomen. These crystals shift and expand as the muscles in the spider's abdomen contract; they often shrink when the spider is agitated, and they expand as it begins to relax.
    via SixteenSeveredHands
  • 09
    The adaptive purpose of this effect is unclear, but researchers believe that the panels may mimic the glistening appearance of raindrops or beads of dew, which could allow the spiders to blend in with their environment. The scattered light may also help to confuse predators, as this article explains:
    via SixteenSeveredHands
  • 10
    Cheezburger Image 10643408640
    via @realscientists
  • 11
    The spider's decorative patterning may seem like a de d give-away to predators, but for those looking to feast on this arachnid, the hunt might result in confusion and failure.
    via SixteenSeveredHands
  • 12
    "Like a disco ball with lots of different mirrors, the reflective splotches on the spider's abdomen probably scatter light and make it difficult for predators to see it," says Robert Whyte, an honorary researcher in arachnology at the Queensland Museum.
    via SixteenSeveredHands
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    2017 NICKY BAY www.nickybay.com
    via www.nickybay.com
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    There are at least 22 known species of mirror-ball spider, and their physical features can vary significantly. In some cases, the silver panels on the abdomen are accompanied by colorful, iridescent spots and scales, and the abdomen itself may have a red, orange, green, yellow, or beige appearance.
    via SixteenSeveredHands
  • 15
    These spiders are widely distributed throughout the southern hemisphere. They can be found in the tropical and neotropical rainforests of South America, Southeast Asia, Africa, Australia, India, Sri Lanka, China, Singapore, and Madagascar.
    via SixteenSeveredHands
  • 16
    Mirror-ball spiders are not aggressive toward humans, and there are virtually no recorded cases of humans being bitten by the spiders of this genus. They're also tiny, with most individuals measuring just 2-4mm long (roughly 1/10th of an inch), which means that their fangs are often too small to penetrate human skin.
    via SixteenSeveredHands
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    Cheezburger Image 10643409408
    via All About Animals
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    Sassy_Sober_Sister17 Thank you for letting me know where I'll not be visiting! I'm terrified of spiders. I can't even fully appreciate this little guy! ED
    via Sassy_Sober_Sister17

  • I really understand this comment, but it goes against everything I'm trying to achieve here. Yes, my first instinct is similar - get away from all the places where this bug can be found. But what's the good in it? The real wisdom is to overcome your fears, even if these fears are just some insects.

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    ©2014 NICKY BAY www.nickyboy.com
    via www.nickybay.com
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    Cheezburger Image 10643429632
    via @nahhhlina

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spiders bugs did you know facts spider cute animals amazing Sparkle Tropical animals
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