This somewhat rarer Masked bee, Hylaeus incongruus roamed on Sheep’s bit scabious (Jasione montana).
The species is recognizable by the white hairspot on the first abdomen segment and the subtle points in this segment. This last characteristic differentiates this species from M. confusus on which these points are not present or barely visible [1, 2].
Literature
1 Hans Nieuwenhuijsen, Ivo Raemakers, "Tabel voor de bijen van het genus Hylaeus in Nederland", Nieuwsbrief Sectie Hymenoptera NEV – nr. 29, april 20092 Peeters, T.M.J., H. Nieuwenhuijsen, J. Smit, F. van der Meer, I.P. Raemakers, W.R.B. Heitmans, C. van Achterberg, M. Kwak, A.J. Loonstra, J. de Rond, M. Roos & M. Reemer 2012. De Nederlands bijen (Hymennoptera: Apidae s.l.). - Natuur van Nederland 11, Naturalis Biodiversity Center & European Invertebrate Survey - Nederland, Leiden.