Species list, Checklist of Infraclass Palaeoptera (Ancient winged insects) for Pleasant Valley (Tillamook County, Oregon, 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 Infraclass Palaeoptera Crampton, 1915 (Ancient winged insects)
and region Pleasant Valley (Tillamook County, Oregon, USA)

Class	Insecta Linnaeus, 1758 Insects, True insects	19 26 26	Families Genera Species	Taxom
Subclass	Pterygota Lang, 1888 Winged insects	19 26 26	Families Genera Species	Taxom
Infraclass	Palaeoptera Crampton, 1915 Ancient winged insects	3 3 3	Families Genera Species	Taxom

List of families for Pleasant Valley (Tillamook County)
3 Families width 3 Species

Caenidae Newman, 1853	Small square-gill mayflies	1	Species	Taxom
Ephemeridae Leach, 1817	Burrowing mayflies	1	Species	Taxom
Aeshnidae Rambur, 1842	Darners	1	Species	Taxom

Genera for Pleasant Valley (Tillamook County)
3 Genera with 3 Species

Caenis Stephens, 1861		1	Species	Taxom
Hexagenia Walsh, 1824	Giant Mayflies	1	Species	Taxom
Rhionaeschna Förster, 1861	Blue-eyed darners	1	Species	Taxom

Species list for Pleasant Valley (Tillamook County)
3 Species

Caenis (Caenis) amica Hagen, 1861	Heterosporous ferns
Hexagenia (Hexagenia) bilineata Say, 1824	Emergent Mayfly
Rhionaeschna multicolor Hagen, 1861	Blue-eyed Darner

Subnodes of Palaeoptera with occurrences in Pleasant Valley (Tillamook County)

Superorder	Ephemeropteroidea Rohdendorf, 1968	2 2 2	Families Genera Species	Taxom
Superorder	Odonatoptera Martynov, 1932	1 1 1	Family Genus Species	Taxom

Links, sources and further information

Palaeoptera at itis.gov