Pygmaeotinea Amsel, 1957, syn. n. is transferred from Tineidae to Psychidae and regarded as congeneric with Eumasia Chrétien, 1904. The type species of Pygmaeotinea is combined with Eumasia as Eumasia crisostomella Amsel, 1957, comb. n. Adult male and female of this species are redescribed and illustrated for the first time. Eumasia crisostomella Amsel, 1957 is only known from the type locality in Portugal at Singeverga and one of three Eumasia species from Iberian Peninsula.