Eutrogia morosa is a moth of the family Noctuidae first described by Frederic Moore in 1882.[1] It is found in Taiwan and Sikkim, India.
The wingspan is about 42 mm. Adults are dark chocolate brown with a purplish tinge. The forewing with traces of subbasal and antemedial lines. The hindwings have a pale speck at the end of the cell and a sinuous medial line, with some dark specks with yellow scales round them towards the inner margin. There is a submarginal series of white specks.[2]