A blowfly to keep in the garden

I rescued a very colourful fly from the pool and I got a couple of photos as it groomed.

 On checking the identity I found that it is a female Snail Parasite Blowfly amenia imperialis which as the name suggests is a parasite on land snails and slugs. More accurately it is the maggots it lays that chomp their way through the host, as the adult flies feed on nectar from flowers and are important pollinators. They are commonly found through NSW and Queensland.