Tiny Bees in my Insect hotel (UK) (2 Viewers)

[lobro45]

Can you I/D these tiny Bees? They are only 8mm long and are visiting my insect hotel. The hotel has a rang of hole sizes, but they seem to be attracted to one particular piece of bamboo .
Thanks .

 

[aeshna5]

Red Mason Bees, Osmia bicornis. Some bees are much smaller than these.

 

[lobro45]

Thanks Aeshna .