Shore Bugs.  As their common name suggests they frequent the edges of water bodies such as stream and ponds, though some prefer a terrestrial habitat. Some species have been shown to be able to survive submerged for some time without the use of an oxygen bubble surrounding the insect.
  [ Aust. 3 genera and 10 species ]

All species pictured have their DNA in the Barcode of Life Database.

Pentacora sp. GC1 Pentacora sp. GC2