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Pink Katydids


This is a re-posting of an original Bug Chicks post on Science Friday.


We spent the holiday break looking over our photos from 2012 and compiling a list of our best from the year.
For this post, we decided to talk about one photo that we picked.  It is not a great photo, technically speaking. Sometimes, the subject itself is noteworthy and amazing, even if the artistry or technique isn’t quite there.  Enter our pink katydid photos!


These are katydids that we photographed at the Soltis Center, a research facility in Cost Rica.  The green katydid on the left is the normal phenotype.  The pink on the right is a result of erythrism – a rare genetic mutation that allows for abnormal amounts of red pigment or the absence of normal pigment – in this case greens and browns.


Some people have suggested that this phenotype might be an adaptation to better survive on pink or red flowers, but after much searching, we haven’t found any evidence to support this theory.  Nevertheless, seeing an insect with erythrism is a rare occurrence.



There is not much known about the behavior of pink katydids in the wild, or the likelihood of finding one.  But apparently the Audubon Insectarium in New Orleans is now breeding and studying this particular pigment disorder in katydids!


There are many examples of pigment disorders in nature.  The most well-known is albinism (amelanism).  In vertebrates, this is an inability to produce melanin.  A lesser-known disorder that affects melanin production is piebaldism.  People with piebaldism usually have sections of hair or skin that is white.  This condition is called poliosis and is called by the absence of melanocytes in a given area.


Special thanks to Joe Noreen, an artist who let us photograph his cool hair!

 The reason we bring this up?  At a New Year’s party last night we ran into a youngman with poliosis, just as we were planning this post on erythrism!  We asked if we could include a picture of him in our post and he was game.  It just goes to show that A) you should always have your camera with you, and B) even if it’s not an award-winning photograph, it still might be one of a kind.  Thanks Joe!


Join the discussion

  1. Joe Pasha

    I am known as the bug guy (should be the insect guy, if people only knew what they’re talking about). I don’t have a website as of now but, on Facebook ( I have thousands but, you might find some of my photos interesting. I only posted a few handfull.
    I was so excited when I first heard of you(z)!
    Anyways, nice job ladies.

  2. thebugchicks

    Hi Bug Guy!! Nice to meet a fellow bugdork. We will check it out. And thanks!!–Kristie

  3. Ron Roscioli

    Closely resembles black swallowtail.

  4. thebugchicks

    We have heard this a lot, but alas-it is not a swallowtail!

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