Tiny male bees roosting together.
7881 on Qld Naturalists' Club long excursion.
Sorry for the poor DOF - photos taken in low light early morning conditions, hastily before work. Have included photos of the effects on the plant (they are stripping the leaves from this acacia).
Native bee on Thryptomene
Identified as Trichocolletes on Bowerbird by Ken Walker: "This is a male."