Recent studies by Panamanian entomologists reveal that leaf-mimicking katydid species, specifically the Alota festae, start their life cycle in a vibrant pink hue, transitioning to green within days. This transformation not only mirrors the color changes of rainforest leaves, which often turn red or pink before fully maturing, but also serves as a sophisticated adaptive camouflage strategy previously misinterpreted as a genetic anomaly.
Striking hot pink female Alota festae, photographed on March 27, 2025, at the Smithsonian Tropical Research Institute, Barro Colorado Island, Panama. Image credit: Zeke W. Rowe.
Commonly referred to as bush crickets, Alota festae is a medium-sized katydid (measuring 2.7 cm and weighing 1 g) native to Panama, Colombia, and Suriname. These insects are usually non-sexually dimorphic, exhibiting a light green coloration and broad, rounded forewings that help them blend into their environment, resembling young plants.
On March 27, 2025, Dr. Benito Wainwright from the University of St Andrews and his colleagues made a groundbreaking discovery while studying a female Alota festae at the Smithsonian Tropical Research Institute field station on Barro Colorado Island in Panama. This specimen showcased an unexpected and vivid hot pink coloration.
“The discovery was quite surprising,” noted Dr. Wainwright. “It’s so uncommon that, under natural conditions, we observed its color shift from deep pink to green.”
Dr. Wainwright elaborated, “Instead of being a rare genetic mutation, this phenomenon could very well be a finely tuned survival tactic aligned with the lifecycle of the rainforest leaves the katydid mimics.”
During their research, the team maintained the insects at natural ambient temperature and humidity for 30 days. After just four days in captivity, the brilliant pink hue faded into a softer pastel pink.
Photographic documentation was made every 24 hours to meticulously track the katydid’s coloration changes. By April 7, 2025, the insect had transitioned entirely to green, rendering it indistinguishable from the more prevalent green variant.
Though pink katydids have been observed in scientific literature since 1878, they were previously viewed as rare mutations with potential disadvantages. This marks the first documented instance of a katydid exhibiting a complete color change within a single life stage.
Dr. Matt Greenwell from the University of Reading commented, “The complexities of tropical forests reveal how precisely certain animals have evolved to adapt. A bright pink insect in an emerald-green forest might seem vulnerable to predators, much like a worker in a high-visibility jacket. The gradual color adaptation reflects the dynamic nature of rainforests and stands as a remarkable example of natural camouflage.”
The team’s findings are detailed in a recent study published on March 7, 2026, in the journal Ecology, which can be accessed here.
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J. Benito Wainwright et al. 2026. Pink Cricket Club: Dramatic color changes in katydids disguised as neotropical leaves (Alota festae Griffini, 1896). Ecology 107 (3): e70333; doi: 10.1002/ecy.70333
Source: www.sci.news
