About Solva marginata (Meigen, 1820)
This species, Solva marginata (Meigen, 1820), has a mostly blackish body. The tip of its thorax bears bright yellow markings, and its abdomen has pale narrow bands alongside bright yellow markings. It has short, multi-segmented antennae, and its overall appearance is similar to that of a sawfly. Its recorded distribution includes Austria, Belgium, China, Denmark, England, France, Germany, Mongolia, Netherlands, Poland, Russia, Sweden, and Ukraine. In the United Kingdom, this species is widespread but considered scarce and uncommon, and it occurs mostly in specific local areas of southeast England, East Anglia, and East Midlands. This fly is associated with poplar trees; its larvae live under tree bark and feed on rotting wood.
