Genus Coleonyx is a group of small, nocturnal lizards that belong to the family Eublepharidae. These lizards are commonly known as banded geckos or western banded geckos. The genus comprises several species, including Coleonyx variegatus, Coleonyx elegans, and Coleonyx switaki. The banded geckos are primarily found in the arid and semi-arid regions of the southwestern United States and northern Mexico. They're known for their distinctive markings, which consist of bands or stripes on their bodies. Synonyms for Genus Coleonyx include Leopardus, Neonius, and Platydactylus. However, the most commonly used name for these lizards remains Coleonyx.