Spania nigra, is a species of 'snipe flies' belonging to the family Rhagionidae.

It is a Palearctic species with a limited distribution in Europe [2] Tiny black flies without a true style, but the ventral margin of the last antennal segment is produced into a pseudostyle.

Vein M3 usually does not reach the wing-margin.

Metapleura bare.

[3] The larvae are thallus-miners of thallose liverworts.