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Checklist for Subclass Pterygota Lang, 1888 (Winged insects)
and region Williams Corners (Mercer County, Pennsylvania, USA)


Class
 		Insecta
Linnaeus, 1758
Insects, True insects		3
5
7		Families
Genera
Species		 
Taxom
 

Subclass
 		Pterygota
Lang, 1888
Winged insects		3
5
7		Families
Genera
Species		 
Taxom
 


List of families for Williams Corners
3 Families width 7 Species
Coenagrionidae Kirby, 1890Narrow-winged damselflies3SpeciesTaxom
Lestidae Calvert, 1901Spread-winged damselflies1SpeciesTaxom
Libellulidae Rambur, 1842Chasers3SpeciesTaxom


Genera for Williams Corners
5 Genera with 7 Species
Enallagma Charpentier, 1861American Bluets1SpeciesTaxom
Ischnura Charpentier, 1839Forktail2SpeciesTaxom
Lestes Leach, 1861Emerald Damselflies1SpeciesTaxom
Libellula Linnaeus, 1773Chaser Or Darter Dragonfly2SpeciesTaxom
Pachydiplax Brauer, 1839Blue Dashers1SpeciesTaxom


Species list for Williams Corners
7 Species
Enallagma aspersum Hagen, 1861Azure Bluet
Ischnura hastata Say, 1839Citrine Forktail
Ischnura verticalis Say, 1839Eastern Forktail
Lestes unguiculatus Hagen, 1861Lyre-tipped Spreadwing
Libellula lydia (Drury, 1773)⇒ Tolidomoxia nigerrima Ermisch, 1950
Libellula pulchella (Drury, 1773)⇒ Celithemis amanda Hagen, 1861
Pachydiplax longipennis Burmeister, 1839Blue dasher

Subnodes of Pterygota with occurrences in Williams Corners
InfraclassPalaeoptera
Crampton, 1915
Ancient winged insects		3
5
7		Families
Genera
Species
Taxom



Links, sources and further information
Pterygota at itis.gov
Pterygota at marinespecies.org