Aegopodium podagraria L. commonly called ground elder, herb gerard, bishop's weed, goutweed, and snow-in-the-mountain, is a perennial plant in the carrot family (Apiaceae) that grows in shady places.
Adult flies were found from May to August visiting flowers of Aegopodium podagraria, Alliaria petiolata, Anthriscus sylvestris, Apiaceae, Aurinia saxatilis, Conium maculatum, Crataegus laevigata, Euphorbia cyparissias, Meum athamanticum, Potentilla reptans, Ranunculus repens, Salix spec.
Also noted at the site are green figwort, Brooklime speedwell, wild angelica, opposite-leaved golden saxifrage, green alkanet, reed canarygrass, giant hogweed, bishopweed, celandine, and Himalayan balsam.