Collita okanoi is a moth of the family Erebidae. It is found on the southern Kuriles (Kunashir, Shikotan) and in Japan (Hokkaido, Honshu, Kyushu)., 2007: A review of Eilema Hübner, 1819 of Russia and adjacent territories. Part 1. The Eilema griseola (Hübner, 1803) species group (Arctiidae: Lithosiinae). Nota Lepidopterologica 30 (1): 25—43. Fullarticle: .
The wingspan is 28–32 mm.
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