Order Coleoptera Linnaeus, 1758 - beetles Family group Adephaga Clairville, 1806 see Suborder Adephaga Schellenberg, 1806 2 Family Hygrobiidae Régimbart, 1879 (1837) 3 Family Haliplidae Aubé, 1836 4 Family Dytiscidae Leach, 1815 - predaceous diving beetles 5 Family Gyrinidae Latreille, 1810 - whirligig beetles 6 Family Rhysodidae Laporte, 1840