Phyllium giganteum Pulchriphyllium giganteum, commonly known as the Giant Malaysian Leaf insect,[2] is a species of leaf insects described from Malaysia by Hausleithner in 1984[3][4][5][6][7][8] and placed in the genus Pulchriphyllium since 2021.

Males have small elytra and sometimes transparent non-leaflike functional hind wings.

In captivity, the species has primarily been observed to reproduce through parthenogenesis meaning the females are asexual.

[11] Newly hatched young nymphs tend to be wingless and brown or reddish in color.

[13] The main plant food sources for this species are oak and bramble tree leaves.