Species list, Checklist of Order Polydesmida (Flat-backed Millipedes) for Grays Harbor County (Washington, 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 Polydesmida Pocock, 1887 (Flat-backed Millipedes)
and region Grays Harbor County (Washington, USA)

Class	Diplopoda De Blainville in Gervais, 1844 Diplopods, Millepedes, Millipede, Millipedes	5 7 7	Families Genera Species	Taxom
Subclass	Chilognatha Latreille, 1802	5 7 7	Families Genera Species	Taxom
Infraclass	Helminthomorpha Pocock, 1887	5 7 7	Families Genera Species	Taxom
Superorder	Merocheta Cook, 1895	3 4 4	Families Genera Species	Taxom
Order	Polydesmida Pocock, 1887 Flat-backed Millipedes	3 4 4	Families Genera Species	Taxom

List of families for Grays Harbor County
3 Families width 4 Species

Nearctodesmidae Chamberlin &..., 1950		1	Species	Taxom
Platyrhacidae Pocock, 1895		1	Species	Taxom
Polydesmidae Leach, 1815	Flat Millipedes	2	Species	Taxom

Genera for Grays Harbor County
4 Genera with 4 Species

Leonardesmus Shelley & Shear, 2006		1	Species	Taxom
Platyrhacus Koch, 1899		1	Species	Taxom
Polydesmus Latreille, 1884	Flat Backed Millipedes	1	Species	Taxom
Pseudopolydesmus Attems, 1844		1	Species	Taxom

Species list for Grays Harbor County
4 Species

Leonardesmus injucundus Shelley & Shear, 2006
Platyrhacus helophorus Attems, 1899
Polydesmus angustus Latzel, 1884	Bridge Creek chaparral
Pseudopolydesmus canadensis Newport, 1844	Canadian Flat-Back Millipede

Subnodes of Polydesmida with occurrences in Grays Harbor County

Suborder	Chelodesmidea Cook, 1895	1 1 1	Family Genus Species	Taxom
Suborder	Polydesmidea Leach, 1815	2 3 3	Families Genera Species	Taxom

Links, sources and further information

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