[2][3][4] The Pulchriphyllium can be differentiated from other Phylliidae genera by the following combinations of morphological characters.

[1] Female: Tegmina cubitus venation simple (unsplit) or bifurcate (into an anterior cubitus (CuA) and posterior cubitus (CuP1) only); tegmina with media and cubitus veins running side by side and touching throughout the majority of their length; tibiae with well-developed exterior lobes; prescutum which is the same width as length, or notably longer than wide; terminal antennomere as long as the preceding one or two segments combined.

Male: Alae radial sector, media anterior, and media posterior veins fusing to the cubitus at different locations along the vein and running together to the wing margin; vomer with a single apical hook; protibiae always with a fully developed interior lobe; meso- and metatibiae exteriors with fully developed lobes.

Egg: Lacks pinnae; surface brittle/stiffly spongey; Lateral margins fanned out into distinct fins with an operculum which is typically longer than wide (but not always), or if the capsule fins are reduced (not prominently protruding), the egg in cross-section is distinctly triangular (not pentagonal or rectangular), with the dorsal surface notable broader than the other surfaces.

Freshly hatched nymph: Exterior profemoral lobe prominent; meso- and metatibiae with notable exterior lobes; abdomen broad (abdominal length less than two times the width); overall colouration red, brown, orange.