Marumba maacki (Bremer, 1861):

Russian Far East, Khabarovskyi Krai, Amurskaya Distr., Mengon, at UV-light, 6-VII-1979 (Coll. SIFIBR) The forewing length is 41 mm. det. V.Kononenko

Russian Far East, Primorskyi Krai, Ussuriisk envir., Suputinskyi (= Ussuriiskyi) Reserve, VII-1968, from A.Sladkov The forewing length is 38 mm. det. E.Berlov