Species list, Checklist of Infraorder Orthosterni for American River (El Dorado 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 Orthosterni Pocock, 1911
and region American River (El Dorado County, California, USA)

Class	Arachnida Lamarck, 1801 Arachnids	23 27 28	Families Genera Species	Taxom
Subclass	Dromopoda Shultz, 1990	4 4 4	Families Genera Species	Taxom
Order	Scorpiones C. L. Koch, 1837 Scorpion, Scorpions	3 3 3	Families Genera Species	Taxom
Suborder	Neoscorpionina Thorell & Lindström, 1885	3 3 3	Families Genera Species	Taxom
Infraorder	Orthosterni Pocock, 1911	3 3 3	Families Genera Species	Taxom

List of families for American River
3 Families width 3 Species

Bothriuridae Simon, 1880		1	Species	Taxom
Buthidae C. L. Koch, 1837	Arrowbreasted scorpions	1	Species	Taxom
Scorpionidae Pierre André..., 1802	Largeclaw scorpions	1	Species	Taxom

Genera for American River
3 Genera with 3 Species

Cercophonius Peters, 1844	1	Species	Taxom
Lychas C. L. Koch, 1844	1	Species	Taxom
Urodacus Peters, 1876	1	Species	Taxom

Species list for American River
3 Species

Cercophonius squama Gervais, 1844	Forest scorpion
Lychas marmoreus C. L. Koch, 1844	Bark scorpion
Urodacus manicatus Thorell, 1876	Black rock scorpion

Subnodes of Orthosterni with occurrences in American River

Superfamily	Buthoidea Koch, 1837	1 1 1	Family Genus Species	Taxom
Superfamily	Scorpionoidea Leach, 1815	2 2 2	Families Genera Species	Taxom