Salbia nebulosalis is a moth in the family Crambidae.

The wings are whitish, with fuscous brown lines.

The hindwings have an antemedial shade and a spot at the end of the cell and a medial line from below the cell to the inner margin.

The postmedial line expands from vein 2 to the anal angle and there is a subterminal broken line from a large apical space to the postmedial at vein 2.

The terminal line does not reach the anal angle.