Another Mining bee on the Firethorn, the Early mining bee (Andrena haemorrhoa).

The species is recognisable by the tip of the abdomen which is surrounded with red hairs. In Dutch the name ‘Roodgatje’, meaning red bum, refers to this characteristic.

I’m not sure if the was only drinkin gnectar on the plant or also collected pollen.

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Literature

¹ Nederlands Soortenregister

² 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.

³ wildebijen.nl, "De Nederlandse bijen en hun relaties, overzicht van in Nederland en Vlaanderen voorkomende solitaire en sociale bijen (Apidea s.l.)"