Aciagrion approximans

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Aciagrion approximans
Aciagrion approximans by Karen Conniff.jpg
A. a. approximans
Aciagrion approximans krishna male (14).jpg
A. a. krishna
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Odonata
Suborder: Zygoptera
Family: Coenagrionidae
Genus: Aciagrion
Species:
A. approximans
Binomial name
Aciagrion approximans
(Selys, 1876)
Synonyms
  • Pseudagrion approximansSelys, 1876
  • Aciagrion tillyardiLaidlaw, 1919
  • Enallagma assamicaFraser, 1919
  • Aciagrion krishnaFraser, 1921

Aciagrion approximans, [2] Indian violet dartlet, [3] is a species of damselfly in the family Coenagrionidae. It is found in east [1] [4] and south [5] [3] [4] of India. The range extends to Thailand, China and Cambodia. [5] [3] [4]

Contents

Subspecies

Fraser considered the specimen found in northeast as Aciagrion approximans and in south as Aciargion hisopa race krishna. [6] [5] A recent study revealed that the subspecies krishna found in south is not conspecific with A. hisopa and found to be very close to A. approximans found in northeast; but differing at the level of subspecies. [4] [3]

Description and habitat

It is a small, slim, slender damselfly with violet and black colors. Its thorax is black with lateral violet stripes. Segments 2 to 7 of the abdomen are black on dorsum and violet in the ventral half. Segments 8 and 9 are violet without any marks. Segment 10 is black on dorsum. The lower half of segment 8 is marked with black in A. a. krishna. Female is similar to the male; but paler in colors. Segments 8 and 9 are black and 10 is blue on dorsum. [5] [4]

It breeds in ponds, lakes or in slow moving streams. [5] [4]

See also

References

  1. 1 2 Sharma, G. (2010). "Aciagrion approximans". IUCN Red List of Threatened Species . 2010 e.T167347A6332229. doi: 10.2305/IUCN.UK.2010-4.RLTS.T167347A6332229.en . Retrieved 20 November 2021.
  2. ↑ Paulson, D.; Schorr, M.; Abbott, J.; Bota-Sierra, C.; Deliry, C.; Dijkstra, K.-D.; Lozano, F. "World Odonata List". OdonataCentral. University of Alabama.
  3. 1 2 3 4 5 "Aciagrion approximans Selys, 1876 – Indian Violet Dartlet". Odonata of India, v. 1.00. Indian Foundation for Butterflies. Retrieved 2017-02-25.
  4. 1 2 3 4 5 6 Shantanu Shrikant Joshi; Oleg Kosterin; Krushnamegh Kunte (2016). "New status for Fraser's forgotten Aciagrion approximans krishna, stat. nov. (Odonata: Zygoptera: Coenagrionidae) from theWestern Ghats of India". International Journal of Odonatology. 19 (1–2): 41–51. Bibcode:2016IJOdo..19...41J. doi: 10.1080/13887890.2016.1166463 . S2CID   89121135 . Retrieved 25 February 2017.
  5. 1 2 3 4 5 C FC Lt. Fraser (1933). The Fauna of British India, including Ceylon and Burma, Odonata Vol. I. Red Lion Court, Fleet Street, London: Taylor and Francis. pp.  340–342.
  6. ↑ Fraser, F C (1921). "A list of dragonflies from Mahabaleshwar". The Journal of the Bombay Natural History Society. 27: 543.
  7. ↑ K.A., Subramanian; K.G., Emiliyamma; R., Babu; C., Radhakrishnan; S.S., Talmale (2018). Atlas of Odonata (Insecta) of the Western Ghats, India. Zoological Survey of India. pp. 130–131. ISBN   978-81-8171-495-4.

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