Home & Garden Garden Photos of the Very Rare Pink Katydid By Jerry James Stone Jerry James Stone Twitter Writer California Polytechnic State University Jerry James Stone is a food blogger, vegetarian chef, activist, and internet personality who started writing for Treehugger in 2004. Learn about our editorial process Updated October 11, 2018 Zleng / Flickr / CC BY 2.0 Share Twitter Pinterest Email Garden Insects Planting Guides Indoor Gardening Urban Farms What you are looking at is the very rare and very pink katydid. First discovered back in 1887, the pink katydid is so rare that they occur once out of every 500 individuals. You have a better chance of spotting a unicorn in the wild. Jenny / Flickr / CC BY-SA 2.0 Of course, the color pink alone isn't very common to the animal kingdom, flamingos aside. It's the result of a condition called erythrism, similar to the recessive gene that afflicts albino animals.Katydids are large, leaf-shaped and usually green. They are named after a song they sing: katy did katy did katy did. Their green skin makes them somewhat hard to find for insect-chowing predators. But the pink ones are not afforded the same luxury. While people have tried to produce pink katydids in captivity, there had been little success until last year. The New Orleans Audubon Insectarium had acquired both a pink male and a pink female katydid which resulted in a litter of new pink babies.