Bees.

Native bees love flowering Disphyma crassifolium, so a drive around the Clydebank Morass to check out the situation was in order. As it turned out there was little in flower, just a few small patches, however that had the effect of concentrating the numbers of foraging bees. On many occasions there were several bees working in a single flower, visible in the left hand bloom. Click to enlarge.

Two species were active, Lasioglossum (Chilalictus) sp. and another unidentified.
Many shots were taken, here are some that show the frenetic activity.