Here's a little caterpillar of the NZ endemic moth species, Zapyrastra calliphana, mining it's way through a leaf of the NZ native plant, Muehlenbeckia australis.
This native caterpillar only eats this kind of native plant. Each caterpillar completes its larval life inside just one leaf, before dropping to the ground to pupate.
I found this in my garden on Friday as part of the City Nature Challenge (#CNC2023).