A new garden species! This wasp’s elongated body stood out between the foraging Ridge-saddled carpenter bees. It is a male Sapygina decemguttata , a rare wasp in the Netherlands that is a parasite on those bees. They were clearly not happy with his presence and purposely bumped into him from flight while he was drinking nectar.
I hope to see the females soon on the bee hotels too since the Ridge-saddled carpenter bees nest in it en masse.
References1 Nederlands Soortenregister