Aeshna
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 Migrant Hawker (Aeshna mixta)
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Aeshna is the scientific name of a genus of dragonflies from the family Aeshnidae. They are also known as hawker dragonflies, or, in North America, as mosaic darners.
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[edit] Description
These are relatively larger dragonflies. Their thorax and abdomen have a brown color, with blue or yellow stripes or spots on the thorax, and yellow, blue or green spots on the abdomen.
Natalia von Ellenrieder's 2003 paper demonstrated that the Holarctic and Neotropical species placed in this genus did not share a common ancestor, and proposed the latter be placed in the genus Rhionaeschna.
The spelling 'Aeschna' has been intermittently used over a period of time, but is now abandoned for the original name 'Aeshna'. However, derived genus names (such as Rhionaeschna) retain the 'sch' spelling, as this is how they were first cited.
[edit] Species
Genus: Aeshna Fabricius, 1775
- Aeshna affinis Van der Linden, 1820 : Southern Migrant Hawker.
- Aeshna athalia Needham, 1930
- Aeshna baicalensis Belyshev, 1964
- Aeshna caerulea (Ström, 1783) : Azure Hawker.
- Aeshna canadensis Walker, 1908 : Canada Darner.
- Aeshna clepsydra Say, 1839 : Mottled Darner.
- Aeshna constricta Say, 1839 : Lance-tailed Darner, Lance-tipped Darner.
- Aeshna crenata Hagen, 1856
- Aeshna cyanea (Müller, 1764) : Blue Darner, Southern Aeshna, Southern Hawker.
- Aeshna ellioti Kirby, 1896 : Highland Hawker
- Aeshna eremita Scudder, 1866 : Lake Darner
- Aeshna flavifrons Lichtenstein, 1976
- Aeshna frontalis Navás, 1936
- Aeshna grandis (Linnaeus, 1758): Brown Hawker.
- Aeshna interrupta Walker, 1908 : Variable Darner.
- Aeshna isosceles Müller, 1767 : Norfolk Aeshna
- Aeshna juncea (Linnaeus, 1758) : Common Hawker or Sedge Darner.
- Aeshna lucia Needham, 1930
- Aeshna meruensis Sjöstedt, 1909
- Aeshna minuscula McLachlan, 1896
- Aeshna mixta Latreille, 1805 : Migrant Hawker.
- Aeshna moori Pinhey, 1981
- Aeshna nigroflava Martin, 1908
- Aeshna ossiliensis Mierzejewski, 1913
- Aeshna palmata Hagen, 1856 : Paddle-tailed Darner.
- Aeshna persephone Donnelly, 1961 : Persephone's Darner.
- Aeshna petalura Martin, 1909
- Aeshna rileyi Calvert, 1892
- Aeshna scotias Pinhey, 1952
- Aeshna septentrionalis Burmeister, 1839 : Azure Darner.
- Aeshna serrata Hagen, 1856
- Aeshna sitchensis Hagen, 1861 : Zigzag Darner.
- Aeshna subarctica Walker, 1908 : Subarctic Darner.
- Aeshna subpupillata McLachlan, 1896
- Aeshna tuberculifera Walker, 1908 : Black-tipped Darner.
- Aeshna umbrosa Walker, 1908 : Shadow Darner.
- Aeshna undulata Bartenev, 1930
- Aeshna verticalis Hagen, 1861 : Green-striped Darner.
- Aeshna viridis Eversmann, 1836 : Green Hawker
- Aeshna walkeri Kennedy, 1917 : Walker's Darner.
- Aeshna williamsoniana Calvert, 1905 : Williamson's Darner
- Aeshna wittei Fraser, 1955
- Aeshna yemenensis Waterston, 1985
Genus: Rhionaeschna Förster, 1909
- Rhionaeschna absoluta (Calvert, 1952)
- Rhionaeschna biliosa (Kennedy, 1938)
- Rhionaeschna bonariensis (Rambur, 1842)
- Rhionaeschna brasiliensis (von Ellenrieder and Martins Costa, 2002)
- Rhionaeschna brevicercia (Muzón and von Ellenrieder, 2001)
- Rhionaeschna brevifrons (Hagen, 1861)
- Rhionaeschna californica (Calvert, 1895) : California Darner.
- Rhionaeschna condor (De Marmels, 2001)
- Rhionaeschna confusa (Rambur, 1842)
- Rhionaeschna cornigera (Brauer, 1865)
- Rhionaeschna decessus (Calvert, 1953)
- Rhionaeschna demarmelsi (von Ellenrieder, 2001)
- Rhionaeschna diffinis (Rambur, 1842)
- Rhionaeschna draco (Rácenis, 1958)
- Rhionaeschna dugesi (Calvert, 1905) : Arroyo Darner.
- Rhionaeschna eduardoi (Machado, 1984)
- Rhionaeschna elsia (Calvert, 1952)
- Rhionaeschna fissifrons (Muzón and von Ellenrieder, 2001)
- Rhionaeschna galapagoensis (Currie, 1901)
- Rhionaeschna haarupi (Ris, 1908)
- Rhionaeschna intricata (Martin, 1908)
- Rhionaeschna itataia (Carvalho and Salgado, 2004)
- Rhionaeschna jalapensis (Williamson, 1908)
- Rhionaeschna joannisi (Martin, 1897)
- Rhionaeschna manni (Williamson and Williamson, 1930)
- Rhionaeschna marchali (Rambur, 1842)
- Rhionaeschna multicolor (Hagen, 1861) : Blue-eyed Darner.
- Rhionaeschna mutata (Hagen, 1861) : Spatterdock Darner.
- Rhionaeschna nubigena (De Marmels, 1989)
- Rhionaeschna obscura (Muzón and von Ellenrieder, 2001)
- Rhionaeschna pallipes (Fraser, 1947)
- Rhionaeschna pauloi (Machado, 1994)
- Rhionaeschna peralta (Ris, 1918)
- Rhionaeschna planaltica (Calvert, 1952)
- Rhionaeschna psilus (Calvert, 1947) : Turquoise-tipped Darner.
- Rhionaeschna punctata (Martin, 1908)
- Rhionaeschna serrania (Carvalho and Salgado, 2004)
- Rhionaeschna tinti (von Ellenrieder, 2000)
- Rhionaeschna variegata (Fabricius, 1775)
- Rhionaeschna vazquezae (González Soriano, 1986)
- Rhionaeschna vigintipunctata (Ris, 1918)
[edit] References
- Corbet, P. S. 1999. Dragonflies: Behavior and Ecology of Odonata. Cornell University Press, Ithaca, New York, USA, 829pp.
- von Ellenrieder, N., 2003. A synopsis of the Neotropical species of 'Aeshna' Fabricius: the genus Rhionaeschna Förster (Odonata: Aeshnidae). - Tijdschrift voor Entomologie 146 (1): 67-207.
