Species list, Checklist of Infraorder Orthosterni for Arkansas (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

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INSECTOIDGERENGDARK LIGHT

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Checklist for Infraorder Orthosterni Pocock, 1911
and region Arkansas (USA)

Class	Arachnida Lamarck, 1801 Arachnids	97 240 350	Families Genera Species	Taxom
Subclass	Dromopoda Shultz, 1990	15 27 39	Families Genera Species	Taxom
Order	Scorpiones C. L. Koch, 1837 Scorpion, Scorpions	2 3 4	Families Genera Species	Taxom
Suborder	Neoscorpionina Thorell & Lindström, 1885	2 3 4	Families Genera Species	Taxom
Infraorder	Orthosterni Pocock, 1911	2 3 4	Families Genera Species	Taxom

List of families for Arkansas
2 Families width 4 Species and 1 Subspecies

Buthidae C. L. Koch, 1837	Arrowbreasted scorpions	3	Species	Taxom
Vaejovidae Thorell, 1876		1	Species	Taxom

Genera for Arkansas
3 Genera with 4 Species

Centruroides Marx, 1863	Bark scorpions	2	Species	Taxom
Parabuthus Pocock, 1928		1	Species	Taxom
Pseudouroctonus Stahnke, 1972		1	Species	Taxom

Species list for Arkansas
4 Species and 1 Subspecies

Centruroides nigrimanus Pocock, 1898
Centruroides vittatus Say, 1863	Bark scorpion
Parabuthus villosus brachystylus Lawrence, 1928
Pseudouroctonus reddelli Gertsch & So..., 1972	Texas Cave Scorpion

Subnodes of Orthosterni with occurrences in Arkansas

Superfamily	Buthoidea Koch, 1837	1 2 3	Family Genera Species	Taxom
Superfamily	Vaejovoidea Thorell, 1876	1 1 1	Family Genus Species	Taxom