Potentilla erecta
The habitat is calcareous montane grassland with "Picea", "Betula", "Juniperus", "Pinus mugo" and alpine grassland up to 2,700m.Flowers visited include "Androsace", "Calamintha", "Cerastium", "Cirsium", "Convolvulus", "Crepis", "Gypsophila", "Helianthemum", "Hornungia", "Pinguicula", "Potentilla erecta", "Ranunculus", "Rhododendron ferrugineum". Flies June to August dependent on altitude. The larva feeds on aphids.