Two species of Clypastraea are listed for Tasmania.
Clypastraea elliptica
Clypastraea fasciatus
Pending ID – Clypastraea
Clypastraea , possibly C. pulchella
Late April 2018
Cosy Corner camp ground, Bay of Fires
On Marram grass.
Identification to family thanks to Boris Büche and to genus, thanks to Laurie Cookson
Photos KE

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