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Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Subphylum: Hexapoda
Classis: Insecta
Cladus: Dicondylia
Subclassis: Pterygota
Cladus: Metapterygota
Cladus: Odonatoptera
Cladus: Holodonata
Ordo: Odonata
Subordo: Epiprocta
Infraordo: Anisoptera
Superfamilia: Libelluloidea

Familia: Corduliidae
Subfamilia: Corduliinae
Genus: Helocordulia
Species: H. selysii – H. uhleri
Helocordulia Needham, 1901

Helocordulia is a genus of dragonfly in the family Corduliidae. They are commonly known as sundragons.

These are medium-sized odonates, 38–46 mm (1.5–1.8 in) long, dark brown with orange markings. They are confined to eastern USA and Canada where their habitat is clear streams and lakes with sandy bottoms.[1]

The genus contains only two species:[2]

Helocordulia selysii (Hagen in Selys, 1878) – Selys's sundragon[3]
Helocordulia uhleri (Selys, 1871) – Uhler's sundragon[3]


Garrison, Rosser W.; von Ellenrieder, Natalia; Louton, Jerry A. (2006). Dragonfly Genera of the New World. The Johns Hopkins University Press. p. 159. ISBN 0-8018-8446-2.
Dennis Paulson; Martin Schorr; Cyrille Deliry. "World Odonata List". University of Puget Sound. Retrieved 15 Feb 2022.
"North American Odonata". University of Puget Sound. 2009. Archived from the original on 11 July 2010. Retrieved 5 August 2010.

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