A Megachilid bee?

A Megachilid bee?

Observation - A Megachilid bee? - UK and Ireland. Description: Here is a solitary bee that is quite chunky and without, I think, obvious pollen on its legs. So, a Megachilid bee? I can't see properly under the eyes for the horns that would make it a female Osmia rufa.

Here is a solitary bee that is quite chunky and without, I think, obvious pollen on its legs. So, a Megachilid bee? I can't see properly under the eyes for the horns that would make it a female Osmia rufa.