Achaea dmoe is a species of moth of the Noctuidae family. It is found in Madagascar. This species has a wingspan of 56–62 mm. Head, thorax and the base of the abdomen are yellowish bronw, sometimes with a rufous tinge. Abdomen otherwise strongly mixed with dark grey.The forewings are moderately broad, costa curved towards the apex, light yellow-brown or red-brown with strong vinaceous reflections, at least in the median area. The distal area and the costal edge are generally more yellow. It has a white spot close to the base, lines grey or blackish and interrupted.The hindwings are dusky greyish-ochreous becoming almost black sitally between costa and M², a small whitish apical spot, and an ill-defined light ochreous-brown band.