Definition
Fenusa is a genus of sawflies, small insects known for their herbivorous habits. These sawflies are part of the larger family Tenthredinidae. Fenusa larvae are often leaf miners, meaning they feed on the inner tissues of leaves, creating visible tunnels or blotches. They can be pests on trees like birch and alder. The genus name helps classify these specific types of leaf-mining sawflies. Think of them as the tiny, tunneling architects of the leaf world. ๐