As they frequently do this female Crossocerus annulipes found a higher position to built her nest. The entrance was located on the top of nest block 4 in section II.

Literature
1 Nederlands SoortenregisterBee hotel
Wasp nest!
Crossocerus annulipes♀︎
Location Krimpen aan den IJssel, garden
Observations
2023-IX-30
As they frequently do this female Crossocerus annulipes found a higher position to built her nest. The entrance was located on the top of nest block 4 in section II.
Literature
1 Nederlands Soortenregister