Ischnura aurora

Ischnura aurora,[3][1] golden dartlet, also known as the aurora bluetail,[4] is a species of damselfly in the family Coenagrionidae.[1][5]

Golden dartlet
male
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Odonata
Suborder: Zygoptera
Family: Coenagrionidae
Genus: Ischnura
Species:
I. aurora
Binomial name
Ischnura aurora
(Brauer, 1865)[2]
Synonyms
  • Agrion aurora Brauer, 1865
  • Agrion spinicauda Brauer, 1865
  • Ischnura bhimtalensis Sahni, 1965
  • Ischnura delicata Hagen, 1876
  • Ischnura rhodosoma Lieftinck, 1959

Adults

A small apple green damselfly with black thoracic stripes and blue tipped yellow tail.[1]

Male

Eyes: Black half moon like cap above, olive green to dark olive below, which fade to pale olive beneath. Two azure blue spots are present behind the eyes. Thorax: Shining black with two pale grass green stripes. Sides are light green and white below. Legs: Pale greenish white with vertical stripe on femur, just above femur - tibia joint. Wings: Transparent. Wing spot: The wing spots are different in fore and hindwings. It is rose-red in forewings and uniform pale grey in hindwings. Abdomen: Bright reddish yellow. The second and seventh segments has upper narrow and broad black marks respectively.[1] Only 1/3 of length of segment 8 and full length of segment 9 tergite are blue. The base color of the segment 8 tergite is melanic black.[6]

Female

Eyes: Brown half moon like cap above, green to pale green below. Thorax: Shining black with two orange stripes. Sides are pale green. Legs: Pale white with vertical black stripes on femur, just above femur - tibia joint. Abdomen: A broad black stripe runs along the upper side of abdomen. Segments 8 - 10 do not have azure blue markings.[1]

Habitat

Found among vegetation along the banks of ponds, rivers, canals, marshes and wet rice fields.[1]

Distribution

Distributed from Australia, Pacific Islands, East Asia and Southeast Asia.[1] There are strong differences in DNA between the Asian forms of the species and specimens from the Pacific.[1] The form found in Indian subcontinent and Iran is Ischnura aurora rubilio Selys, 1876 and is now considered as a different taxon, Ischnura rubilio.[7]

  • Male in Australia
  • Illustration of Ischnura aurora wing
  • Photo of female wings
  • Photo of male wings

See also

References
  1. Dow, R.A. (2013). "Ischnura aurora". IUCN Red List of Threatened Species. 2013: e.T167375A1177456. doi:10.2305/IUCN.UK.2013-1.RLTS.T167375A1177456.en.
  2. Brauer, F. (1865). "Dritter Bericht über die auf der Weltfahrt der kais. Fregatte Novara gesammelten Libellulinen". Verhandlungen der Zoologisch-Botanischen Gesellschaft in Wien (in German). 15: 501–512 [510] – via Biodiversity Heritage Library.
  3. "World Odonata List". Slater Museum of Natural History. Retrieved 2017-03-03.
  4. Theischinger, Gunther; Hawking, John (2006). The Complete Field Guide to Dragonflies of Australia. Collingwood Vic.: CSIRO. p. 96. ISBN 978-0643090736.
  5. "Species Ischnura aurora (Brauer, 1865)". Australian Faunal Directory. Australian Biological Resources Study. 2012. Retrieved 8 April 2017.
  6. Rj, Rowe (2010-08-13). "Ischnura aurora (Brauer 1865) (Zygoptera: Coenagrionidae), an Australo-Pacific species". New Zealand Journal of Zoology. 37, 2010 - Issue 2 (2): 189–192. doi:10.1080/03014223.2010.488789.
  7. DUMONT, H.J. (December 2013). "PHYLOGENY OF THE GENUS ISCHNURA, WITH EMPHASIS ON THE OLD WORLD TAXA (ZYGOPTERA: COENAGRIONIDAE)" (PDF). Odonatologica. 42 (4): 301–308.

Data related to Ischnura aurora at Wikispecies

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