A familiar face but one that I hadn’t seen in the garden yet, the decorative Graphosoma lineatum  shieldbug.
From one day to the other three specimen had found the blooming Fennel (Foeniculum vulgare) plant in the garden, one of their hostplants . These bugs always remind me of warm summer holidays in Southern Europe, so finding them in the garden was a nice surprise although they are common in the Netherlands.
Two out of three I’ve seen mating, the third was just hanging around on the Fennel.
References1 Nederlands Soortenregister
2 Binazzi, Francesco & Sabbatini Peverieri, Giuseppino & Simoni, Sauro & Frosinini, Riccardo & Fabbricatore, Tiziano & Roversi, Pio. (2015). An effective method for Graphosoma lineatum (L.) long-term rearing. Journal of Zoology.