Phyllonorycter melhaniae is a moth of the family Gracillariidae. It is known from ZimbabweGlobal Taxonomic Database of Gracillariidae (Lepidoptera) and South Africa.

The length of the forewings is 2.4–2.8 mm. Adults are on wing from mid-April to mid-May.Systematics, revisionary taxonomy, and biodiversity of Afrotropical Lithocolletinae (Lepidoptera: Gracillariidae)

The larvae feed on Melhania velutina. They mine the leaves of their host plant.

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