Oligia dubia is a species of moth belonging to the family Noctuidae.

[2] The name of the species derives from the Latin dubia, meaning doubtful, because of the then uncertain taxonomic status of the species.

[3] This rare species is present in Austria, Hungary, Northern Italy, Croatia, Slovakia and Switzerland.

[4][1] These moths live in grasslands surrounded by mixed deciduous forest and in xerothermic rocky escarpment on limestone at an altitude of about 800–900 m.[5][6] Oligia dubia has a wingspan of 22–24 mm.

[3] These moths have quite variable dark brown forewings, with a clearer marginal area.