This is a male banksia bee (see Native bees of the ACT and NSW South Coast A Spotter's Guide by Peter Abbott, p. 80). The images were taken over 3 days with image 1 on 7 May 2025. I only occasionally saw 2 bees at the same time and don't know if I was photographing the same bee over the 3 days. It was on a flower briefly before moving to another flower or leaving.