Eupithecia meridiana is a moth in the Geometridae family. It is found in Chile (Aconcagua). The length of the forewings is about 10 mm for males and 11 mm for females. The base, median field and three marginal spots on the forewings are grey irrorated with brown scales. The antemedian and postmedian area and two marginal spots are white or greyish white. The hindwings are grey with a brownish suffusion and a wide, wavy greyish white transverse stripe. Adults are on wing in December.