Ischnura

Ischnura is a genus of damselflies known as forktails in the family Coenagrionidae.[2] Forktails are distributed worldwide, including various oceanic islands. The males have a forked projection at the tip of the abdomen which gives the group their common name.[3]

Ischnura
Ischnura heterosticta
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Odonata
Suborder: Zygoptera
Family: Coenagrionidae
Genus: Ischnura
Charpentier, 1840[1]

Characteristics

Forktails are small or very small damselflies. The compound eyes of mature individuals have a dark upper region and contrasting lower part. The thorax is often green and may have lateral stripes and the abdomen in males is black with a blue tip. Females of some species are polymorphic, some being orangish and darkening with age, while others resemble the male.[3]

Species

The genus Ischnura includes the following species:[4][5]

  • Ischnura abyssinica Martin, 1908
  • Ischnura acuticauda Lieftinck, 1959
  • Ischnura albistigma Fraser, 1927
  • Ischnura aralensis Haritonov, 1979
  • Ischnura ariel Lieftinck, 1949
  • Ischnura asiatica (Brauer, 1865) – Redtail[6]
  • Ischnura aurora Brauer, 1865 – Aurora Bluetail[6]
  • Ischnura barberi Currie, 1903 – Desert Forktail[7]
  • Ischnura buxtoni Fraser, 1927
  • Ischnura capreolus (Hagen, 1861)
  • Ischnura cardinalis Kimmins, 1929
  • Ischnura cervula Selys, 1876 – Pacific Forktail[7]
  • Ischnura chingaza Realpe, 2010
  • Ischnura chromostigma Fraser, 1927
  • Ischnura cruzi De Marmels, 1987
  • Ischnura cyane Realpe, 2010
  • Ischnura damula Calvert, 1902 – Plains Forktail[8]
  • Ischnura demorsa (Hagen, 1861) – Mexican Forktail[8]
  • Ischnura denticollis (Burmeister, 1839) – Black-fronted Forktail[7][9]
  • Ischnura dorothea Fraser, 1924
  • Ischnura elegans (vanderLinden, 1823) – Blue-tailed Damselfly[10]
  • Ischnura erratica Calvert, 1895 – Swift Forktail[7]
  • Ischnura evansi Morton, 1919 – Blue-banded Damsel
  • Ischnura filosa Schmidt, 1951
  • Ischnura fluviatilis Selys, 1876
  • Ischnura forcipata Morton, 1907
  • Ischnura fountaineae Morton, 1905 – Oasis Bluetail[11]
  • Ischnura gemina (Kennedy, 1917) – San Francisco Forktail[7]
  • Ischnura genei (Rambur, 1842) – Island Bluetail[11]
  • Ischnura graellsii (Rambur, 1842) – Iberian Bluetail[11]
  • Ischnura haemastigma Fraser, 1927
  • Ischnura hastata (Say, 1839) – Citrine Forktail[7]
  • Ischnura heterosticta (Burmeister, 1839) – Common Bluetail[6]
  • Ischnura inarmata Calvert, 1898
  • Ischnura indivisa (Ris, 1918)
  • Ischnura intermedia Dumont 1974
  • Ischnura isoetes Lieftinck, 1949
  • Ischnura karafutonis Matsumura, 1931
  • Ischnura kellicotti Williamson, 1898 – Lilypad Forktail[12]
  • Ischnura luta Polhemus, Asquith & Miller, 2000
  • Ischnura ordosi Bartenev, 1912
  • Ischnura pamelae Vick & Davies, 1988
  • Ischnura perparva Selys, 1876 – Western Forktail[7][12]
  • Ischnura posita (Hagen, 1861) – Fragile Forktail[9][12]
  • Ischnura prognata (Hagen, 1861) – Furtive Forktail[12]
  • Ischnura pruinescens (Tillyard, 1906) – Colourful Bluetail[6]
  • Ischnura pumilio (Charpentier, 1825) – Small Bluetail or Scarce Blue-tailed Damselfly[10]
  • Ischnura ramburii (Selys, 1850) – Rambur's Forktail[7]
  • Ischnura rhodosoma Lieftinck, 1959
  • Ischnura rubella Navás, 1934
  • Ischnura rufostigma Selys, 1876
  • Ischnura rufovittata (Blanchard, 1843)
  • Ischnura saharensis Aguesse, 1958 – Sahara Bluetail[13]
  • Ischnura sanguinostigma Fraser, 1953
  • Ischnura senegalensis (Rambur, 1842) – Marsh Bluetail[14]
  • Ischnura spinicauda Brauer, 1865
  • Ischnura stueberi Lieftinck, 1932
  • Ischnura taitensis Selys, 1876
  • Ischnura thelmae Lieftinck, 1966
  • Ischnura ultima Ris, 1908
  • †Ischnura velteni Bechly, 2000 [15]
  • Ischnura verticalis (Say, 1839) – Eastern Forktail[9][12]
  • Ischnura vinsoni Fraser, 1949

References
  1. Charpentier, T. (1840). Libellulinae Europaeae Descriptae et Depictae (in Latin). Leipzig: Leopold Voss. pp. 180 [20]. hdl:2027/nyp.33433011575317.
  2. "Genus Ischnura Charpentier, 1840". Australian Faunal Directory. Australian Biological Resources Study. 2012. Retrieved 3 April 2017.
  3. Paulson, Dennis (2009). Dragonflies and Damselflies of the West. Princeton University Press. p. 107. ISBN 978-1-4008-3294-1.
  4. Martin Schorr; Dennis Paulson. "World Odonata List". University of Puget Sound. Retrieved 12 Oct 2018.
  5. "Odonata species list". Swedish Museum of Natural History. Retrieved 11 August 2010.
  6. Günther Theischinger; John Hawking (2006). The complete field guide to dragonflies of Australia. CSIRO Publishing. ISBN 0-643-09073-8.
  7. "California Damselflies". Dragonflies (Odonata) of the Southwest. Archived from the original on 2009-09-23.
  8. "Species List: Damselflies". azdragonfly.net. Archived from the original on 2011-07-21. Retrieved 2010-08-13.
  9. Abbott, John (2008). Dragonflies and Damselflies (Odonata) of Texas, Vol 3. Odonata Survey of Texas. ISBN 978-0-615-19494-3.
  10. "Checklist of UK Species". British Dragonfly Society. Retrieved 5 August 2010.
  11. "Checklist, English common names". DragonflyPix.com. Archived from the original on 4 December 2012. Retrieved 5 August 2010.
  12. "North American Odonata". University of Puget Sound. 2009. Retrieved 5 August 2010.
  13. Samraoui, B. & Dijkstra, K.-D.B. (2010). "Ischnura saharensis". IUCN Red List of Threatened Species. 2010: e.T165477A6031236. doi:10.2305/IUCN.UK.2010-3.RLTS.T165477A6031236.en. Retrieved 24 December 2017.
  14. "Ischnura senegalensis". IUCN Red List. Retrieved 5 August 2010.
  15. Toussaint, E. F. A.; Bybee, S. M.; Erickson, R. J.; Condamine, F. L. (8 February 2019). "Forest giants on different evolutionary branches: Ecomorphological convergence in helicopter damselflies". Evolution. 73.5: 1045–1054. doi:10.1111/evo.13695.
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