#triozidae

An undescribed genus, associated with Casuarina and Allocasuarina. Since this wall was underneath some she-oaks, and had dozens if not hundreds of these psylloids on it, I think that's a safe bet about foodplant.

The Triozidae used to be considered part of the Psyllidae, but recent taxonomy work has greatly re-organised these small plant-sucking insects. Some are serious plant pests.

Powellia species were the first psyllids described from New Zealand, in the late 1800s, by William Miles Maskell (1839 –1898) a New Zealand farmer, politician and entomologist. Some of them have been described as Trioza species.

At least a few of them are endemic to Aotearoa - Powellia panacis, the lancewood psyllid, for example. I'm unsure which species this is, but it resembles the Pittosporum Psyllid Powellia vitreoradiata at least.