Cirsium arvense
Habitat: Dune systems, unimproved pasture, montane grassland and alpine grassland and clearings in deciduous forest. Flowers visited include white umbellifers "Caltha", "Cirsium arvense", "Leontodon", "Leucanthemum", "Menyanthes", "Prunus spinosa", "Ranunculus", "Salix", "Senecio", "Taraxacum".Flies April to October.