Argyria auratellus, the Curve-lined Vaxi or Curve-lined Argyria Moth, is a moth in the Crambidae family. It was described by Clemens in 1860. It is found in North America, where it has been recorded from the eastern United States and south-eastern Canada from Quebec and Maine to Florida, west to Texas and north to Manitoba. It is also found in California. The habitat consists of wet prairies and meadows.