Sawfly larvae are typically gregarious, and it is common to see them neatly aligned when feeding. More lovely symmetry! These were rapidly devouring a eucalypt leaf.

perhaps Lophyrotoma

The warm night air was also filled with swarming ants. Here a large female has drawn several smaller males.

Camponotus (sugar ants)

The activity around the light also attracts the opportunists. The leopard moth succumbed to the depradations of a large bull ant.

Myrmecia (bull ant)