In two new species of giant stick insects from the dry forests of Madagascar, males turn blue or multicolored at sexual maturity. Achrioptera manga, an adult male from Foret d’Orangea, Madagascar. Image credit: Glaw et al, doi: 10.3389/fevo.2019.00105. The two newly-discovered species belong to the genus Achrioptera, a group of extremely large and exceptionally colorful stick insects endemic to Madagascar and the Comoros Archipelago. “Most stick...
