Viola-associate
Guides
Nefusa ambigua
Violet Leafmining Sawfly
Nefusa ambigua, commonly known as the violet leafmining sawfly, is a species of sawfly in the family Tenthredinidae. The larvae are specialized leafminers that feed internally within the leaves of Viola species (violets). This species has been documented across multiple Canadian provinces and is known for its distinctive larval habit of creating mines within violet foliage.