Ameiva undulata

The rainbow ameiva, barred whiptail, or metallic ameiva (Holcosus undulatus) is a species of whiptail lizard found in Costa Rica, Nicaragua, Honduras, El Salvador, Guatemala, Belize, and southern Mexico. Brown coloured with darker zig-zag lines or bars running down the sides often with light blue and green markings along sides and underside. It is similar to the Middle-American Ameiva (Holcosus festivus). Lives in litter in open habitats.