Potnyctycia nemesi is a species of moth in the family Noctuidae. It is endemic to Taiwan and occurs in mixed forest.
Description They can have a wingspan of with the length of the forewing being . This species is difficult to distinguish from Potnyctycia taiwana. It can be distinguished with the greenish pattern of the forewing being a paler grass-greenish color that lacks a dark olive-green irroration. The last sternite of the female is larger, wider and broader with a V-shape caudal incision.
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