Solitary bee nest sealed with a leaf

Solitary bee nest sealed with a leaf

Observation - Solitary bee nest sealed with a leaf. Description: This bee looked rather like Osmia rufa (which I have had nesting here) but without the reddish hairs. I thought that it would seal the hole with clay, but instead it used what appeared to be chewed up leaves and it was sealed with a leaf.

This bee looked rather like Osmia rufa (which I have had nesting here) but without the reddish hairs.
I thought that it would seal the hole with clay, but instead it used what appeared to be chewed up leaves and it was sealed with a leaf.