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Checklist for Order Odonata Fabricius, 1793 (Damselflies)
and region Johnstown (Calvert County, Maryland, USA)


Class
 		Insecta
Linnaeus, 1758
Insects, True insects		27
44
47		Families
Genera
Species		 
Taxom
 

Subclass
 		Pterygota
Lang, 1888
Winged insects		27
44
47		Families
Genera
Species		 
Taxom
 

Infraclass
 		Palaeoptera
Crampton, 1915
Ancient winged insects		4
11
16		Families
Genera
Species		 
Taxom
 

Superorder
 		Odonatoptera
Martynov, 1932
4
11
16		Families
Genera
Species		 
Taxom
 

Order
 		Odonata
Fabricius, 1793
Damselflies, Demoiselles, Dragonflies		4
11
16		Families
Genera
Species		 
Taxom
 


List of families for Johnstown (Calvert County)
4 Families width 16 Species
Calopterygidae Selys, 1850Broad-winged damselflies1SpeciesTaxom
Coenagrionidae Kirby, 1890Narrow-winged damselflies8SpeciesTaxom
Libellulidae Rambur, 1842Chasers6SpeciesTaxom
Lestidae Calvert, 1901Spread-winged damselflies1SpeciesTaxom


Genera for Johnstown (Calvert County)
11 Genera with 16 Species
Calopteryx Leach, 1805Demoiselle Damselflies1SpeciesTaxom
Chromagrion Needham, 1876Aurora Damsels1SpeciesTaxom
Enallagma Charpentier, 1895American Bluets4SpeciesTaxom
Erythemis Hagen, 1839Pondhawks1SpeciesTaxom
Ischnura Charpentier, 1839Forktail2SpeciesTaxom
Lestes Leach, 1862Emerald Damselflies1SpeciesTaxom
Libellula Linnaeus, 1773Chaser Or Darter Dragonfly2SpeciesTaxom
Nehalennia Selys, 1861Sprites1SpeciesTaxom
Pachydiplax Brauer, 1839Blue Dashers1SpeciesTaxom
Sympetrum Newman, 1943Darter Dragonfly1SpeciesTaxom
Tramea Hagen, 1861Saddlebag Gliders1SpeciesTaxom


Species list for Johnstown (Calvert County)
16 Species
Calopteryx maculata Palisot de B..., 1805Black-winged Damselfly
Chromagrion conditum Hagen, 1876Aurora Damsel
Enallagma antennatum Say, 1840Rainbow Bluet
Enallagma cyathigerum Charpentier, 1840Common Blue
Enallagma exsulans Hagen, 1861Stream Bluet
Enallagma geminatum Kellicott, 1895Skimming Bluet
Erythemis simplicicollis Say, 1839Common Pondhawk
Ischnura posita Hagen, 1861Fragile Forktail
Ischnura verticalis Say, 1839Eastern Forktail
Lestes inaequalis Walsh, 1862Elegant Spreadwing
Libellula lydia (Drury, 1773)⇒ Tolidomoxia nigerrima Ermisch, 1950
Libellula pulchella (Drury, 1773)⇒ Celithemis amanda Hagen, 1861
Nehalennia irene Hagen, 1861Sedge Sprite
Pachydiplax longipennis Burmeister, 1839Blue dasher
Sympetrum internum Montgomery, 1943Cherry-faced meadowhawk
Tramea lacerata Hagen, 1861Black Saddlebags

Subnodes of Odonata with occurrences in Johnstown (Calvert County)
SuborderEpiprocta
Lohmann, 1996
1
5
6		Family
Genera
Species
Taxom

SuborderZygoptera
Selys, 1854
Damselflies		3
6
10		Families
Genera
Species
Taxom



Odonata (Fabricius 1793)
Odonata (Fabricius 1793)


Links, sources and further information
Odonata at papua-insects.nl
Odonata at ru.ac.za
Odonata at artfakta.se
Odonata at dyntaxa.se
Odonata at gbif.org
Odonata at irmng.org
Odonata at itis.gov
Odonata at marinespecies.org