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Checklist for Infraclass Palaeoptera Crampton, 1915 (Ancient winged insects)
and region Helton Creek (Ashe County, North Carolina, USA)


Class
 		Insecta
Linnaeus, 1758
Insects, True insects		8
10
6		Families
Genera
Species		 
Taxom
 

Subclass
 		Pterygota
Lang, 1888
Winged insects		8
10
6		Families
Genera
Species		 
Taxom
 

Infraclass
 		Palaeoptera
Crampton, 1915
Ancient winged insects		3
5
2		Families
Genera
Species		 
Taxom
 


List of families for Helton Creek
3 Families width 2 Species
Heptageniidae Needham, 1901Flat-Bodied Up-Wings Heptageniidae1SpeciesTaxom
Oligoneuriidae (Ulmer, 1914)Brushleg Mayflies1SpeciesTaxom
Leptophlebiidae Banks, 1900Leptophlebiids0SpeciesTaxom


Genera for Helton Creek
5 Genera with 2 Species
Epeorus Eaton, 18531SpeciesTaxom
Isonychia Eaton, 1932Slate Drakes1SpeciesTaxom
Leucrocuta Flowers, 1980
0SpeciesTaxom
Paraleptophlebia Lestage, 1917
0SpeciesTaxom
Stenonema Traver, 1933
0SpeciesTaxom


Species list for Helton Creek
2 Species
Epeorus vitreus Walker, 1853Cream variant
Isonychia similis (Traver, 1932)⇒ Isonychia winkleri Ulmer, 1939

Subnodes of Palaeoptera with occurrences in Helton Creek
SuperorderEphemeropteroidea
Rohdendorf, 1968
3
5
2		Families
Genera
Species
Taxom



Links, sources and further information
Palaeoptera at itis.gov