I am a little worried about the callus on the second flower (second photo) going down to the labellum tip. This flower looks more like Chiloglottis formicifera. There are a few callus in this area on the other flower which is not very conclusive but the second flower has them to the tip in a prominent C. formicifera like display.
I was confused by the variability of the callus. In my photos several have none, some little and one prominent. I am happy with your id of C formicifera. I plan to go back to take more photographs, but not until after the long weekend. The plants are on the edge of Boxvale Track .