Tergite 2 is narrower than it is long and it has greyish 'hockey stick' shaped markings.

A. transfuga has similar markings but with tergite 2 parallel sided and wider than long.

A wetland species found near ponds with Typha, especially in fens.

Flowers visited include white umbellifers, Menyanthes, Ranunculus, Myosotis, Potentilla palustris, Sorbus aucuparia and Potentilla palustris [5][6] The larva has been found among debris of dead Typha stalks beneath the water surface.

West Palearctic Ireland eastwards through central Europe to European Russia.