The genus Calotes is still a heterogeneous group that may be divided into the C. versicolor and C. liocephalus groups. The former occurs through most of South Asia and further east. All species in this group have their dorsal and lateral scales directed upward. The latter is restricted to the southern Western Ghats and Sri Lanka. All species in this group have their scales directed back, or up and down, or down only. Whether further splitting is necessary or whether the groups constitute subgenera of a monophyletic Calotes remains to be studied.