Hi,
I'm located in Brisbane, Australia (South East Queensland). I just caught these tonight in my backyard roaming around one of the lights.
I keep Myrmecia so I know they're definitely not bullants.
I was wondering if they're just male alates or maybe virgin queens or potentially queens?
The last picture shows this odd pose some of them were adopting. Not injured or anything as I just freshly caught them and they had also been walking around absolutely fine without any issues.
They measure approx 9 - 10mm long
My stab in the dark guess is Iridomyrmex purpureus as we have a bit of a population in the area but I've seen their queens and they tend to be chunky.
Thanks in advance.