About Vaxi critica (Fbs., 1820)
Vaxi critica, commonly called the straight-lined vaxi or straight-lined argyria moth, is a moth species belonging to the family Crambidae. This species was first described by William Trowbridge Merrifield Forbes in 1920. It is native to North America, with confirmed records ranging from Maine and Ontario in the north, south to Florida, and west to Illinois. Its preferred habitat is made up of fields and meadows. In the northern portion of its range, adult moths are active in flight from June through September. In Florida, adults are on wing from March through July.