Phyllium[1][2] is the largest and most widespread genus of leaf insects in the family Phylliidae (Phasmatodea).

They can be found in Sundaland, Philippine Islands, Wallacea, and Australasia.

[3] Within the genus Phyllium, apart from Phyllium itself, the subgenus Pulchriphyllium established by Griffini in 1898 has been differentiated.

Since 2021, all three subgenera have been regarded as separate genera.

[6] The genus Phyllium includes the following species:[3][7][8]