Stagmatophora trimitra is a moth in the family Cosmopterigidae first described by Edward Meyrick in 1913.

The forewings are very dark bronzy fuscous with a short silvery-white streak from the base of the costa along the submedian fold, as well as three fine silvery-white transverse fasciae, the first at one-fourth, somewhat oblique, the second median, direct, the third at three-fourths direct, but with the extremities produced outwards in the cilia.

There is also a silvery-white apical dot.

The hindwings are dark fuscous.

This article relating to Cosmopteriginae is a stub.