Suniana lascivia, the dingy grass-dart or dingy dart, is a butterfly of the Hesperiidae family. It is found in Australia (New South Wales, Northern Territory, Queensland, Victoria, Western Australia), Papua New Guinea and Indonesia. The wingspan is about 20 mm. The larvae feed on Panicum maximum and Imperata cylindrica species. During the day, it rests in a vertical shelter formed by joining leaves of the host plant with silk.