| Osmia caerulescens |
| Authority | : | (Linnaeus, 1758) |
| Nederlands | : | Blauwe metselbij |
| English | : | Blue mason bee |
| Deutsch | : | Blaue Mauerbiene |
 |
 |
| Amstelveen, the Netherlands; 3 April 2014. Female. | |
| Osmia caerulescens |
| Authority | : | (Linnaeus, 1758) |
| Nederlands | : | Blauwe metselbij |
| English | : | Blue mason bee |
| Deutsch | : | Blaue Mauerbiene |
|
|
| Amstelveen, the Netherlands; 3 April 2014. Female. | |