Three species are listed in Tasmania
Leptopius robustus
Leptopius tribulus
Pending ID – Leptopius
#1. 2.4cm
Early January 2020
Arthur River
#2. Leptopius sp.?
Early October 2013
Tomahawk
Approximately 17mm body length.
Identification thanks to Boris Büche.
#3. Leptopius sp.
Late December 2019
Peron Dunes, St Helens
#4. Leptopius sp.
Late December 2019
Peron Dunes, St Helens
Found on Coast Wattle (Acacia longifolia).
#5. Early January 2020
Arthur River
#6. Early January 2020
Arthur River
. 
Specimen with only two undamaged legs
Early October 2022
Bridport
Early January 2023
Arthur River
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