Deltoplastis acrophanes is a moth in the Lecithoceridae family. It was described by Meyrick in 1910. It is found in Sri Lanka.
The wingspan is 16-20 mm. The forewings are rather dark fuscous, with a slight purplish gloss and an inwardly oblique cloudy darker shade from the dorsum before the middle, reaching two-thirds across the wing, often obsolete. The second discal stigma is cloudy, dark fuscous and also often obsolete. There is a fine line of whitish scales from five-sixths of the costa to the tornus, very indistinct except at the extremities. An interrupted black line is found around the apex and termen. The hindwings are fuscous, tinged anteriorly with pale ochreous.