Ashy Mining Bee

I went on a trip to look for Dotted Bee Flies today in the location I found them 2 years ago - sadly there were none! 
But... I did find several of these beautiful Ashy Mining Bees (Andrena cineraria).
I think this bee is one of my all time favourite spring bees, and today there were females (Main picture). males (extra 2) and even a cheeky mating pair! (see extra" 1}  I felt very lucky.