Species list, Checklist of Order Spirobolida (Round-backed millipedes) for Utah (West USA, 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 Order Spirobolida Cook, 1895 (Round-backed millipedes)
and region Utah (West USA, USA)

Class	Diplopoda De Blainville in Gervais, 1844 Diplopods, Millepedes, Millipede, Millipedes	21 28 33	Families Genera Species	Taxom
Subclass	Chilognatha Latreille, 1802	20 27 32	Families Genera Species	Taxom
Infraclass	Helminthomorpha Pocock, 1887	20 27 32	Families Genera Species	Taxom
Superorder	Anocheta Cook, 1895	3 4 4	Families Genera Species	Taxom
Order	Spirobolida Cook, 1895 Round-backed millipedes	3 4 4	Families Genera Species	Taxom

List of families for Utah
3 Families width 4 Species

Spirobolidae Bollman, 1893		2	Species	Taxom
Atopetholidae Chamberlin, 1918		1	Species	Taxom
Rhinocricidae Brölemann, 1913		1	Species	Taxom

Genera for Utah
4 Genera with 4 Species

Narceus Rafinesque, 1820		1	Species	Taxom
Piedolus Chamberlin, 1930		1	Species	Taxom
Rhinocricus Karsch, 1955		1	Species	Taxom
Tylobolus Cook, 1925		1	Species	Taxom

Species list for Utah
4 Species

Narceus annularis (Rafinesque, 1820)	⇒ Narceus annularus Rafinesque, 1820
Piedolus utus Chamberlin, 1930	Argus desertsnail
Rhinocricus entypus Chamberlin, 1955
Tylobolus utahensis Chamberlin, 1925

Subnodes of Spirobolida with occurrences in Utah

Suborder	Spirobolidea Cook, 1895	1 1 1	Family Genus Species	Taxom
Family	Atopetholidae Chamberlin, 1918	1 1	Genus Species	Taxom
Family	Spirobolidae Bollman, 1893	2 2	Genera Species	Taxom

Links, sources and further information

Spirobolida at artfakta.se
Spirobolida at dyntaxa.se
Spirobolida at gbif.org
Spirobolida at irmng.org
Spirobolida at itis.gov