Apologies for the late response on this, I'm only just catching up. I think this looks more like Eurymeloides adspersa, which is already up on CNM. The image of Nanipoides maculosa at https://idtools.dpi.nsw.gov.au/keys/leafhop/species/nmaculos.htm is not a good match with this sighting, and at https://idtools.dpi.nsw.gov.au/keys/leafhop/eurymelinae/ipoini.htm its stated host plant (Heterodendron) is a tree of inland semi-arid regions. The distribution of N. maculosa in ALA (except for a Melbourne point) is also inland. I believe the ALA image taken at Upper Beaconsfield (probably the same Melbourne point) is misidentified, and may be Eurymeloides adspersa. There are lots of ALA images of E. adspersa and it seems quite variable.