The Confused Tigerwing, Sweet-oil Tiger, or Lysimnia Tigerwing (Mechanitis lysimnia) is a species of butterfly of the Nymphalidae family. It was described by Fabricius in 1793. It is found in Central and South America, from southern Mexico to Uruguay. The habitat consists of disturbed forests at altitudes up to 1,500 metres (4,900 ft). Adults have been recorded feeding on nectar from Eupatorium flowers. The larvae are gregarious and feed on Solanum species and possibly other members of the Solanaceae family. They are pale green streaked with yellow.