Family Chrysomelidae, subfamily Criocerinae.
Accidentally introduced from North America. Its presence in Australia was noted in 2010; see Stevens, M.M., Stanton, R.A., Wu, H., Sampson, B., Weir, T., Reid, C.A.M. & Mo, J. 2010. Detection of Lema bilineata Germar (Coleoptera: Chrysomelidae) in Australia. General and Applied Entomology 39: 1-3
https://extension.unh.edu/sites/default/files/migrated_unmanaged_files/Resource001192_Rep1517.pdf
Lema (Quasilema) daturaphila is listed in the following regions:
Canberra & Southern Tablelands | South Coast
Synonyms
Lema trilineata (Olivier) Lema trivittata SayMaps
Pine Island to Point HutPlaces
Greenway, ACT Surf Beach, NSW