Oreta turpis is a moth in the family Drepanidae. It was described by Arthur Gardiner Butler in 1877. It is found in Japan, the Russian Far East (Sakhalin, Ussuri), KoreaOreta at Markku Savela's Lepidoptera and Some Other Life Forms and China (Shandong)., 2012: Revision of Chinese Oretinae (Lepidoptera, Drepanidae). Zootaxa 3445: 1-36.
The wingspan is 30–40 mm.Japanese Moths Adults are pale shining brown, the external area sprinkled with black, the forewings are crossed by two parallel greyish lines, which become blackish towards the apex. There is a short apical streak between the outer line and the margin. The hindwings have a pale costal area and the apical area is darker than the rest of the wing.Annals and Magazine of Natural History (4) 20 (120): 477
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