The Flowing-line Hypena (Hypena manalis) is a moth of the Noctuidae family. It is found from Minnesota to Nova Scotia, south to Florida and Texas. The wingspan is 23–28 mm. The moth flies from May to September in the south and from June to August in the north. There two to three generations per year. The larvae feed on false nettle, but have also been reared on dandelion and on dock.