Species list, Checklist of Superfamily Hydrophiloidea (Histerids) for Northwest England (North England, United Kingdom)

Class	Insecta Linnaeus, 1758 Insects, True insects	208 888 1367	Families Genera Species	Taxom
Subclass	Pterygota Lang, 1888 Winged insects	208 888 1367	Families Genera Species	Taxom
Infraclass	Neoptera van der Wulp, 1890 Modern Wing-folding insects	194 845 1286	Families Genera Species	Taxom
Superorder	Holometabola Heider, 1889 Holometabolous Insects	155 780 1208	Families Genera Species	Taxom
Order	Coleoptera Linnaeus, 1758 Beetles, Coleopterans	34 189 283	Families Genera Species	Taxom
Suborder	Polyphaga Emery, 1886 Polyphags	30 142 190	Families Genera Species	Taxom
Infraorder	Staphyliniformia Lameere, 1900	7 39 61	Families Genera Species	Taxom
Superfamily	Hydrophiloidea Latreille, 1802 Histerids, Hydriphiloids, Hydrophilids	2 5 6	Families Genera Species	Taxom

List of families for Northwest England
2 Families width 6 Species

Hydrophilidae Latreille, 1802	Silver Water Beetles	5	Species	Taxom
Helophoridae Leach, 1815	Water scavenger beetles	1	Species	Taxom

Genera for Northwest England
5 Genera with 6 Species

Species list for Northwest England
6 Species

Enochrus (Methydrus) coarctatus Gredler, 1863
Helophorus (Rhopalohelophorus) arvernicus Mulsant, 1846
Helophorus (Rhopalohelophorus) brevipalpis Bedel, 1881
Helopium agabus ♰ J. O. Westwood, 1854
Hydrochara caraboides Linnaeus, 1758	Lesser silver water beetle
Hydrochus angustatus Germar, 1824

Subnodes of Hydrophiloidea with occurrences in Northwest England

Family	Helophoridae Leach, 1815 Water scavenger beetles	1 1	Genus Species	Taxom
Family	Hydrophilidae Latreille, 1802 Silver Water Beetles, Water beetles, water scavenger beetle, Water scavenger beetles, Water scawenger beetles	4 5	Genera Species	Taxom

Links, sources and further information