15.05.2012 MB 1 (1)

15.05.2012 MB 1 (1)

Observation - 15.05.2012 MB 1 (1) - UK and Ireland. Description: Looks like a Mining Bee, but what are the small round sacks on its back; eggs maybe?

Looks like a Mining Bee, but what are the small round sacks on its back; eggs maybe?