A male Crossocerus annulipes [1] on the bee hotel, probably looking for females.
The males can be seen hanging about a nest hole that they use as resting place and base for their activities.

References
1 Nederlands SoortenregisterA male Crossocerus annulipes [1] on the bee hotel, probably looking for females.
The males can be seen hanging about a nest hole that they use as resting place and base for their activities.
References
1 Nederlands Soortenregister