Marumba dyras
More russet brown than orange-brown on underside than in Marumba spectabilis. Forewing underside with marginal zone only slightly darker than rest of wing, not distinctly darker as it is in Marumba juvencus.
Male genitalia: Uncus divided into two rounded lobes. Gnathos with pointed medial lobe varying in shape. Valva with dorso-apical lobe pointed, shorter than in Marumba sperchius; subdorsal basal fold with long process. Harpe more strongly hook-shaped, intermediate between Marumba sperchius and Marumba amboinicus, not denticulate. Phallus with processes long, granulose.
Female genitalia: Sterigma with prominent rounded lobe in front of ostium bursae.
Records from China: Heilongjiang, Jilin, Liaoning and Shaanxi are considered to be misidentifications of other species of Marumba, most probably Marumba sperchius sperchius; they are not mapped.