Native blue bees

Lately we have been visited by some native blue banded bees and also what I think are Neon Cuckoo bees, gathering nectare from our basil. I mentioned it to our neighbour Bruce (a bee keeper - he now only keeps a native stingless bee, which is really cute being only 4mm small) and he lent me his book on identifying native bees of the Sydney region.
I've tried to take a picture of one but they seem to know and buzz off...but this one shows you how vivid they are in the sun.
Here's a better shot, aren't they an amazing colour.