Species list, Checklist of Infraorder Staphyliniformia for Emigrant Gap (Placer County, California, USA)

Ants	Arachnids
Bees	Beetles
Booklice	Bugs
Bumblebees	Butterflies
Cicadas	Crane flies
Dragonflies	Earwigs
Flies	Isopods
Locusts	Mantises
Mayflies	Mosquitoes
Myriapods	Net-winged
Plant-parasitic	Scorpion flies
Termites	Wasps

Taxonomy & Distribution
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INSECTOIDGERENGDARK LIGHT

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Checklist for Infraorder Staphyliniformia Lameere, 1900
and region Emigrant Gap (Placer County, California, USA)

Class	Insecta Linnaeus, 1758 Insects, True insects	37 79 111	Families Genera Species	Taxom
Subclass	Pterygota Lang, 1888 Winged insects	37 79 111	Families Genera Species	Taxom
Infraclass	Neoptera van der Wulp, 1890 Modern Wing-folding insects	31 64 83	Families Genera Species	Taxom
Superorder	Holometabola Heider, 1889 Holometabolous Insects	26 59 78	Families Genera Species	Taxom
Order	Coleoptera Linnaeus, 1758 Beetles, Coleopterans	8 23 23	Families Genera Species	Taxom
Suborder	Polyphaga Emery, 1886 Polyphags	7 12 13	Families Genera Species	Taxom
Infraorder	Staphyliniformia Lameere, 1900	3 3 4	Families Genera Species	Taxom

List of families for Emigrant Gap
3 Families width 4 Species

Hydrophilidae Latreille, 1802	Silver Water Beetles	2	Species	Taxom
Helophoridae Leach, 1815	Water scavenger beetles	1	Species	Taxom
Hydraenidae Mulsant, 1844	Cascade Beetles	1	Species	Taxom

Genera for Emigrant Gap
3 Genera with 4 Species

Helophorus Fabricius, 1860	2	Species	Taxom
Helopium Westwood, 1854	1	Species	Taxom
Hydraena Kugelann, 1980	1	Species	Taxom

Species list for Emigrant Gap
4 Species

Helophorus (Rhopalohelophorus) lecontei Knisch, 1924	Powell's amaranth
Helophorus (Rhopalohelophorus) orientalis Motschulsky, 1860
Helopium agabus ♰ J. O. Westwood, 1854
Hydraena pacifica Perkins, 1980

Subnodes of Staphyliniformia with occurrences in Emigrant Gap

Superfamily	Hydrophiloidea Latreille, 1802 Histerids, Hydriphiloids, Hydrophilids, Water Scavenger and Clown Beetles	2 2 3	Families Genera Species	Taxom
Superfamily	Staphylinoidea Latreille, 1802 Carrion Beetles, Fungus Beetles, Rove Beetles, Staphylinid Beetles	1 1 1	Family Genus Species	Taxom

Links, sources and further information

Staphyliniformia at itis.gov