Osmia Cornuta

Received today the bee house for the terrace. The bees are Osmia Cornutas (not stingy, do not produce honey but are very useful). They are still sleeping but will wake up when it gets warmer.

https://en.m.wikipedia.org/wiki/Osmia_cornuta

Interesting concept. More information (in German):
http://www.wildbiene-und-partner.com
http://www.wildbee.ch