Among the foraging wasps in the garden the European paper wasp (Polistes dominula)  is well represented this year. Previous years the species was limited to one or two foraging specimen on Fennel and especially Trumpet vine (Campsis radicans). A first for this year are the visiting males, at least two specimen. This male drank nectar at the bottom of the tube shaped Trumpet vine flower.
References1 Nederlands Soortenregister