Tropidurus helenaeTropidurus helenae is a species of lizard in the family Tropiduridae. The species is native to northeastern Brazil.EtymologyThe specific name, helenae, is in honor of Brazilian herpetologist Helena Ribas Lopes.Geographic rangeT. helenae is endemic to the Brazilian state of Piauí.HabitatThe preferred natural habitat of T. helenae is savanna.DescriptionThe holotype of T. helenae has a snout-to-vent length of, plus a tail length of.BehaviorT. helenae is terrestrial, diurnal, and saxicolous.DietT. helenae preys upon termites.ReproductionT. helenae is oviparous.