Buffish Mining Bee, female [Andrena nigroaenea]

A very common Mining Bee which can be found in various habitats including farmland and gardens etc. The females excavate egg chambers in the ground, [on lawns, under shrubs, banks and even decaying brick mortar] where the eggs are laid, and food is also deposited in the egg chambers for when the grubs hatch.

Female Buffish Mining Bee which are larger than the males
and stockier

Female Buffish Mining Bee [which is covered in yellow pollen] starting to excavate an egg chamber
in my garden

An disused egg chamber of the Buffish Mining Bee

Female Nomada goodeniana a parasite Bee which lays it's eggs
in the egg chambers of the Buffish Mining Bee amongst others