Order Coleoptera Linnaeus, 1758 - beetles Family group Palpicornia see Series Scarabaeiformia Crowson, 1960 7 Family Hydraenidae Mulsant, 1844 8 Family Spercheidae Erichson, 1837 see Family Hydrophilidae Latreille, 1802 9 Family Hydrophilidae Latreille, 1802 - water scavenger beetles