Genus Antiporus 

Composed of three Tasmanian species

cf. Antiporus sp.?
Late November 2013
Strathblane
In a freshwater pond

 

Reference
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