Genus Altica

Tasmania has three species listed.

Altica corrusca  Blue Metallic Flea Beetle
      IMG 0483  IMG 0391  Altica corrusca

References:

Grove S.J., Forster  L. G. ,Porch, N. (2021) An illustrated checklist of the insects of Tasmania. Part 1 – Coleoptera (beetles). The Royal Society of Tasmania. Hobart