Prophantis smaragdina is a species of moth of the family Crambidae described by Arthur Gardiner Butler in 1875.

It is found in subtropical Africa south of the Sahara.

[1] The larvae of this species infest coffee beans.

Known food plants of this species are: Rubiaceae (Coffea arabica, Ixora coccinea and Gardenia sp.

), Verbenaceae (Duranta plumieri), and Menispermaceae (Triclisia sp.).